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Finding the Fourth Proportional to 318,986,226.77, 478,560,040.65 and 88,955,336.03

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Solution

The fourth proportional to 318,986,226.77, 478,560,040.65 and 88,955,336.03 is: 133,455,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,986,226.77 : 478,560,040.65 = 88,955,336.03 : x
  2. Step 2: Convert to fraction form
    318,986,226.77/478,560,040.65 = 88,955,336.03/x
  3. Step 3: Cross multiply
    318,986,226.77x = 478,560,040.65 × 88,955,336.03
  4. Step 4: Simplify right side
    318,986,226.77x = 42,570,469,224,158,408
  5. Step 5: Solve for x
    x = 42,570,469,224,158,408/318,986,226.77
  6. Step 6: Final answer
    x = 133,455,508.90

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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.