Home / 868,900,101.32-1,199,123,133.56-492,563,983.04

Finding the Fourth Proportional to 868,900,101.32, 1,199,123,133.56 and 492,563,983.04

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Solution

The fourth proportional to 868,900,101.32, 1,199,123,133.56 and 492,563,983.04 is: 679,761,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,900,101.32 : 1,199,123,133.56 = 492,563,983.04 : x
  2. Step 2: Convert to fraction form
    868,900,101.32/1,199,123,133.56 = 492,563,983.04/x
  3. Step 3: Cross multiply
    868,900,101.32x = 1,199,123,133.56 × 492,563,983.04
  4. Step 4: Simplify right side
    868,900,101.32x = 590,644,866,821,719,552
  5. Step 5: Solve for x
    x = 590,644,866,821,719,552/868,900,101.32
  6. Step 6: Final answer
    x = 679,761,535.21

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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.