Home / 99,727,377.49-149,649,358.60-72,033,986.98

Finding the Fourth Proportional to 99,727,377.49, 149,649,358.60 and 72,033,986.98

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Solution

The fourth proportional to 99,727,377.49, 149,649,358.60 and 72,033,986.98 is: 108,093,085.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727,377.49 : 149,649,358.60 = 72,033,986.98 : x
  2. Step 2: Convert to fraction form
    99,727,377.49/149,649,358.60 = 72,033,986.98/x
  3. Step 3: Cross multiply
    99,727,377.49x = 149,649,358.60 × 72,033,986.98
  4. Step 4: Simplify right side
    99,727,377.49x = 10,779,839,948,957,752
  5. Step 5: Solve for x
    x = 10,779,839,948,957,752/99,727,377.49
  6. Step 6: Final answer
    x = 108,093,085.57

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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.