Home / 729,657,967.10-1,006,928,965.60-395,131,066.32

Finding the Fourth Proportional to 729,657,967.10, 1,006,928,965.60 and 395,131,066.32

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Solution

The fourth proportional to 729,657,967.10, 1,006,928,965.60 and 395,131,066.32 is: 545,281,397.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,657,967.10 : 1,006,928,965.60 = 395,131,066.32 : x
  2. Step 2: Convert to fraction form
    729,657,967.10/1,006,928,965.60 = 395,131,066.32/x
  3. Step 3: Cross multiply
    729,657,967.10x = 1,006,928,965.60 × 395,131,066.32
  4. Step 4: Simplify right side
    729,657,967.10x = 397,868,915,886,022,592
  5. Step 5: Solve for x
    x = 397,868,915,886,022,592/729,657,967.10
  6. Step 6: Final answer
    x = 545,281,397.35

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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.