Home / 70,123,138.32-96,779,544.02-40,353,174.57

Finding the Fourth Proportional to 70,123,138.32, 96,779,544.02 and 40,353,174.57

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Solution

The fourth proportional to 70,123,138.32, 96,779,544.02 and 40,353,174.57 is: 55,692,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123,138.32 : 96,779,544.02 = 40,353,174.57 : x
  2. Step 2: Convert to fraction form
    70,123,138.32/96,779,544.02 = 40,353,174.57/x
  3. Step 3: Cross multiply
    70,123,138.32x = 96,779,544.02 × 40,353,174.57
  4. Step 4: Simplify right side
    70,123,138.32x = 3,905,361,834,644,059.50
  5. Step 5: Solve for x
    x = 3,905,361,834,644,059.50/70,123,138.32
  6. Step 6: Final answer
    x = 55,692,912.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.