Home / 83,621,333.70-125,432,000.55-66,402,645.30

Finding the Fourth Proportional to 83,621,333.70, 125,432,000.55 and 66,402,645.30

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Solution

The fourth proportional to 83,621,333.70, 125,432,000.55 and 66,402,645.30 is: 99,603,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,621,333.70 : 125,432,000.55 = 66,402,645.30 : x
  2. Step 2: Convert to fraction form
    83,621,333.70/125,432,000.55 = 66,402,645.30/x
  3. Step 3: Cross multiply
    83,621,333.70x = 125,432,000.55 × 66,402,645.30
  4. Step 4: Simplify right side
    83,621,333.70x = 8,329,016,641,791,054
  5. Step 5: Solve for x
    x = 8,329,016,641,791,054/83,621,333.70
  6. Step 6: Final answer
    x = 99,603,967.95

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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.