Home / 42,828,599.47-64,245,391.17-12,120,609.91

Finding the Fourth Proportional to 42,828,599.47, 64,245,391.17 and 12,120,609.91

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Solution

The fourth proportional to 42,828,599.47, 64,245,391.17 and 12,120,609.91 is: 18,181,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,828,599.47 : 64,245,391.17 = 12,120,609.91 : x
  2. Step 2: Convert to fraction form
    42,828,599.47/64,245,391.17 = 12,120,609.91/x
  3. Step 3: Cross multiply
    42,828,599.47x = 64,245,391.17 × 12,120,609.91
  4. Step 4: Simplify right side
    42,828,599.47x = 778,693,324,886,928.50
  5. Step 5: Solve for x
    x = 778,693,324,886,928.50/42,828,599.47
  6. Step 6: Final answer
    x = 18,181,620.10

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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.