Home / 1,590,409,612.20-2,385,614,418.30-426,057,810.60

Finding the Fourth Proportional to 1,590,409,612.20, 2,385,614,418.30 and 426,057,810.60

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Solution

The fourth proportional to 1,590,409,612.20, 2,385,614,418.30 and 426,057,810.60 is: 639,086,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,409,612.20 : 2,385,614,418.30 = 426,057,810.60 : x
  2. Step 2: Convert to fraction form
    1,590,409,612.20/2,385,614,418.30 = 426,057,810.60/x
  3. Step 3: Cross multiply
    1,590,409,612.20x = 2,385,614,418.30 × 426,057,810.60
  4. Step 4: Simplify right side
    1,590,409,612.20x = 1,016,409,655,996,690,688
  5. Step 5: Solve for x
    x = 1,016,409,655,996,690,688/1,590,409,612.20
  6. Step 6: Final answer
    x = 639,086,715.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.