Home / 291,353,691.62-402,056,130.13-159,199,224.80

Finding the Fourth Proportional to 291,353,691.62, 402,056,130.13 and 159,199,224.80

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Solution

The fourth proportional to 291,353,691.62, 402,056,130.13 and 159,199,224.80 is: 219,688,392.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,353,691.62 : 402,056,130.13 = 159,199,224.80 : x
  2. Step 2: Convert to fraction form
    291,353,691.62/402,056,130.13 = 159,199,224.80/x
  3. Step 3: Cross multiply
    291,353,691.62x = 402,056,130.13 × 159,199,224.80
  4. Step 4: Simplify right side
    291,353,691.62x = 64,007,024,240,375,640
  5. Step 5: Solve for x
    x = 64,007,024,240,375,640/291,353,691.62
  6. Step 6: Final answer
    x = 219,688,392.77

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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.