Home / 156,980,617.62-216,633,252.88-87,382,440

Finding the Fourth Proportional to 156,980,617.62, 216,633,252.88 and 87,382,440

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Solution

The fourth proportional to 156,980,617.62, 216,633,252.88 and 87,382,440 is: 120,587,767.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980,617.62 : 216,633,252.88 = 87,382,440 : x
  2. Step 2: Convert to fraction form
    156,980,617.62/216,633,252.88 = 87,382,440/x
  3. Step 3: Cross multiply
    156,980,617.62x = 216,633,252.88 × 87,382,440
  4. Step 4: Simplify right side
    156,980,617.62x = 18,929,942,221,791,428
  5. Step 5: Solve for x
    x = 18,929,942,221,791,428/156,980,617.62
  6. Step 6: Final answer
    x = 120,587,767.51

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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.