Home / 28,519,221.40-42,778,832.10-10,332,129.40

Finding the Fourth Proportional to 28,519,221.40, 42,778,832.10 and 10,332,129.40

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Solution

The fourth proportional to 28,519,221.40, 42,778,832.10 and 10,332,129.40 is: 15,498,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519,221.40 : 42,778,832.10 = 10,332,129.40 : x
  2. Step 2: Convert to fraction form
    28,519,221.40/42,778,832.10 = 10,332,129.40/x
  3. Step 3: Cross multiply
    28,519,221.40x = 42,778,832.10 × 10,332,129.40
  4. Step 4: Simplify right side
    28,519,221.40x = 441,996,428,838,073.75
  5. Step 5: Solve for x
    x = 441,996,428,838,073.75/28,519,221.40
  6. Step 6: Final answer
    x = 15,498,194.10

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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.