Home / 65,747,007.54-90,767,358.84-39,648,136.86

Finding the Fourth Proportional to 65,747,007.54, 90,767,358.84 and 39,648,136.86

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Solution

The fourth proportional to 65,747,007.54, 90,767,358.84 and 39,648,136.86 is: 54,736,432.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,747,007.54 : 90,767,358.84 = 39,648,136.86 : x
  2. Step 2: Convert to fraction form
    65,747,007.54/90,767,358.84 = 39,648,136.86/x
  3. Step 3: Cross multiply
    65,747,007.54x = 90,767,358.84 × 39,648,136.86
  4. Step 4: Simplify right side
    65,747,007.54x = 3,598,756,665,709,051
  5. Step 5: Solve for x
    x = 3,598,756,665,709,051/65,747,007.54
  6. Step 6: Final answer
    x = 54,736,432.89

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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.