Home / 66,377,738.40-99,559,234.80-54,389,565.60

Finding the Fourth Proportional to 66,377,738.40, 99,559,234.80 and 54,389,565.60

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Solution

The fourth proportional to 66,377,738.40, 99,559,234.80 and 54,389,565.60 is: 81,578,307.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,377,738.40 : 99,559,234.80 = 54,389,565.60 : x
  2. Step 2: Convert to fraction form
    66,377,738.40/99,559,234.80 = 54,389,565.60/x
  3. Step 3: Cross multiply
    66,377,738.40x = 99,559,234.80 × 54,389,565.60
  4. Step 4: Simplify right side
    66,377,738.40x = 5,414,983,532,240,403
  5. Step 5: Solve for x
    x = 5,414,983,532,240,403/66,377,738.40
  6. Step 6: Final answer
    x = 81,578,307.17

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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.