Home / 42,513,292.92-63,780,620.34-12,221,211

Finding the Fourth Proportional to 42,513,292.92, 63,780,620.34 and 12,221,211

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Solution

The fourth proportional to 42,513,292.92, 63,780,620.34 and 12,221,211 is: 18,334,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,513,292.92 : 63,780,620.34 = 12,221,211 : x
  2. Step 2: Convert to fraction form
    42,513,292.92/63,780,620.34 = 12,221,211/x
  3. Step 3: Cross multiply
    42,513,292.92x = 63,780,620.34 × 12,221,211
  4. Step 4: Simplify right side
    42,513,292.92x = 779,476,418,886,031.75
  5. Step 5: Solve for x
    x = 779,476,418,886,031.75/42,513,292.92
  6. Step 6: Final answer
    x = 18,334,886.93

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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.