Home / 1,080,364,151.40-1,490,079,948.40-929,912,872.12

Finding the Fourth Proportional to 1,080,364,151.40, 1,490,079,948.40 and 929,912,872.12

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Solution

The fourth proportional to 1,080,364,151.40, 1,490,079,948.40 and 929,912,872.12 is: 1,282,571,735.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,364,151.40 : 1,490,079,948.40 = 929,912,872.12 : x
  2. Step 2: Convert to fraction form
    1,080,364,151.40/1,490,079,948.40 = 929,912,872.12/x
  3. Step 3: Cross multiply
    1,080,364,151.40x = 1,490,079,948.40 × 929,912,872.12
  4. Step 4: Simplify right side
    1,080,364,151.40x = 1,385,644,524,505,065,472
  5. Step 5: Solve for x
    x = 1,385,644,524,505,065,472/1,080,364,151.40
  6. Step 6: Final answer
    x = 1,282,571,735.38

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Half scale
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Double scale
Find fourth proportional to 1,080,364,152.40, 1,490,079,949.78 and 929,912,873.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.