Home / 239,398,792.29-330,370,184.13-129,390,505.29

Finding the Fourth Proportional to 239,398,792.29, 330,370,184.13 and 129,390,505.29

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Solution

The fourth proportional to 239,398,792.29, 330,370,184.13 and 129,390,505.29 is: 178,558,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,398,792.29 : 330,370,184.13 = 129,390,505.29 : x
  2. Step 2: Convert to fraction form
    239,398,792.29/330,370,184.13 = 129,390,505.29/x
  3. Step 3: Cross multiply
    239,398,792.29x = 330,370,184.13 × 129,390,505.29
  4. Step 4: Simplify right side
    239,398,792.29x = 42,746,765,055,679,184
  5. Step 5: Solve for x
    x = 42,746,765,055,679,184/239,398,792.29
  6. Step 6: Final answer
    x = 178,558,816.64

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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.