Home / 291,730,356.08-402,589,104.33-157,768,272.32

Finding the Fourth Proportional to 291,730,356.08, 402,589,104.33 and 157,768,272.32

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Solution

The fourth proportional to 291,730,356.08, 402,589,104.33 and 157,768,272.32 is: 217,720,871.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,730,356.08 : 402,589,104.33 = 157,768,272.32 : x
  2. Step 2: Convert to fraction form
    291,730,356.08/402,589,104.33 = 157,768,272.32/x
  3. Step 3: Cross multiply
    291,730,356.08x = 402,589,104.33 × 157,768,272.32
  4. Step 4: Simplify right side
    291,730,356.08x = 63,515,787,442,198,544
  5. Step 5: Solve for x
    x = 63,515,787,442,198,544/291,730,356.08
  6. Step 6: Final answer
    x = 217,720,871.76

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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.