Home / 84,466,690-126,747,965.82-45,604,624.02

Finding the Fourth Proportional to 84,466,690, 126,747,965.82 and 45,604,624.02

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Solution

The fourth proportional to 84,466,690, 126,747,965.82 and 45,604,624.02 is: 68,432,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,466,690 : 126,747,965.82 = 45,604,624.02 : x
  2. Step 2: Convert to fraction form
    84,466,690/126,747,965.82 = 45,604,624.02/x
  3. Step 3: Cross multiply
    84,466,690x = 126,747,965.82 × 45,604,624.02
  4. Step 4: Simplify right side
    84,466,690x = 5,780,293,326,520,911
  5. Step 5: Solve for x
    x = 5,780,293,326,520,911/84,466,690
  6. Step 6: Final answer
    x = 68,432,814.48

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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.