Home / 291,730,354.50-402,589,102.16-157,768,270.74

Finding the Fourth Proportional to 291,730,354.50, 402,589,102.16 and 157,768,270.74

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Solution

The fourth proportional to 291,730,354.50, 402,589,102.16 and 157,768,270.74 is: 217,720,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,730,354.50 : 402,589,102.16 = 157,768,270.74 : x
  2. Step 2: Convert to fraction form
    291,730,354.50/402,589,102.16 = 157,768,270.74/x
  3. Step 3: Cross multiply
    291,730,354.50x = 402,589,102.16 × 157,768,270.74
  4. Step 4: Simplify right side
    291,730,354.50x = 63,515,786,466,355,192
  5. Step 5: Solve for x
    x = 63,515,786,466,355,192/291,730,354.50
  6. Step 6: Final answer
    x = 217,720,869.58

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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.