Home / 154,441,175.86-213,141,966.59-87,472,046.47

Finding the Fourth Proportional to 154,441,175.86, 213,141,966.59 and 87,472,046.47

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Solution

The fourth proportional to 154,441,175.86, 213,141,966.59 and 87,472,046.47 is: 120,718,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,441,175.86 : 213,141,966.59 = 87,472,046.47 : x
  2. Step 2: Convert to fraction form
    154,441,175.86/213,141,966.59 = 87,472,046.47/x
  3. Step 3: Cross multiply
    154,441,175.86x = 213,141,966.59 × 87,472,046.47
  4. Step 4: Simplify right side
    154,441,175.86x = 18,643,964,006,267,668
  5. Step 5: Solve for x
    x = 18,643,964,006,267,668/154,441,175.86
  6. Step 6: Final answer
    x = 120,718,868.54

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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.