Home / 155,971,062.72-215,246,792.58-86,356,443.66

Finding the Fourth Proportional to 155,971,062.72, 215,246,792.58 and 86,356,443.66

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Solution

The fourth proportional to 155,971,062.72, 215,246,792.58 and 86,356,443.66 is: 119,175,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,971,062.72 : 215,246,792.58 = 86,356,443.66 : x
  2. Step 2: Convert to fraction form
    155,971,062.72/215,246,792.58 = 86,356,443.66/x
  3. Step 3: Cross multiply
    155,971,062.72x = 215,246,792.58 × 86,356,443.66
  4. Step 4: Simplify right side
    155,971,062.72x = 18,587,947,516,430,476
  5. Step 5: Solve for x
    x = 18,587,947,516,430,476/155,971,062.72
  6. Step 6: Final answer
    x = 119,175,616.25

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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.