Home / 280,040,349.83-386,461,869.06-154,592,248.61

Finding the Fourth Proportional to 280,040,349.83, 386,461,869.06 and 154,592,248.61

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Solution

The fourth proportional to 280,040,349.83, 386,461,869.06 and 154,592,248.61 is: 213,340,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,040,349.83 : 386,461,869.06 = 154,592,248.61 : x
  2. Step 2: Convert to fraction form
    280,040,349.83/386,461,869.06 = 154,592,248.61/x
  3. Step 3: Cross multiply
    280,040,349.83x = 386,461,869.06 × 154,592,248.61
  4. Step 4: Simplify right side
    280,040,349.83x = 59,744,009,338,076,472
  5. Step 5: Solve for x
    x = 59,744,009,338,076,472/280,040,349.83
  6. Step 6: Final answer
    x = 213,340,718.13

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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.