Home / 680,522,092.80-1,020,783,139.20-644,690,284.80

Finding the Fourth Proportional to 680,522,092.80, 1,020,783,139.20 and 644,690,284.80

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Solution

The fourth proportional to 680,522,092.80, 1,020,783,139.20 and 644,690,284.80 is: 967,035,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,522,092.80 : 1,020,783,139.20 = 644,690,284.80 : x
  2. Step 2: Convert to fraction form
    680,522,092.80/1,020,783,139.20 = 644,690,284.80/x
  3. Step 3: Cross multiply
    680,522,092.80x = 1,020,783,139.20 × 644,690,284.80
  4. Step 4: Simplify right side
    680,522,092.80x = 658,088,972,729,886,080
  5. Step 5: Solve for x
    x = 658,088,972,729,886,080/680,522,092.80
  6. Step 6: Final answer
    x = 967,035,427.20

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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.