Home / 28,412,717.76-42,625,388.16-13,258,382.40

Finding the Fourth Proportional to 28,412,717.76, 42,625,388.16 and 13,258,382.40

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Solution

The fourth proportional to 28,412,717.76, 42,625,388.16 and 13,258,382.40 is: 19,890,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412,717.76 : 42,625,388.16 = 13,258,382.40 : x
  2. Step 2: Convert to fraction form
    28,412,717.76/42,625,388.16 = 13,258,382.40/x
  3. Step 3: Cross multiply
    28,412,717.76x = 42,625,388.16 × 13,258,382.40
  4. Step 4: Simplify right side
    28,412,717.76x = 565,143,696,173,712.38
  5. Step 5: Solve for x
    x = 565,143,696,173,712.38/28,412,717.76
  6. Step 6: Final answer
    x = 19,890,518.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.