Home / 66,559,803.11-99,850,432.95-20,501,650.72

Finding the Fourth Proportional to 66,559,803.11, 99,850,432.95 and 20,501,650.72

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Solution

The fourth proportional to 66,559,803.11, 99,850,432.95 and 20,501,650.72 is: 30,755,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559,803.11 : 99,850,432.95 = 20,501,650.72 : x
  2. Step 2: Convert to fraction form
    66,559,803.11/99,850,432.95 = 20,501,650.72/x
  3. Step 3: Cross multiply
    66,559,803.11x = 99,850,432.95 × 20,501,650.72
  4. Step 4: Simplify right side
    66,559,803.11x = 2,047,098,700,369,772
  5. Step 5: Solve for x
    x = 2,047,098,700,369,772/66,559,803.11
  6. Step 6: Final answer
    x = 30,755,780.59

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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.