Home / 65,747,019.54-90,767,375.40-39,648,148.86

Finding the Fourth Proportional to 65,747,019.54, 90,767,375.40 and 39,648,148.86

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Solution

The fourth proportional to 65,747,019.54, 90,767,375.40 and 39,648,148.86 is: 54,736,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,747,019.54 : 90,767,375.40 = 39,648,148.86 : x
  2. Step 2: Convert to fraction form
    65,747,019.54/90,767,375.40 = 39,648,148.86/x
  3. Step 3: Cross multiply
    65,747,019.54x = 90,767,375.40 × 39,648,148.86
  4. Step 4: Simplify right side
    65,747,019.54x = 3,598,758,411,490,702
  5. Step 5: Solve for x
    x = 3,598,758,411,490,702/65,747,019.54
  6. Step 6: Final answer
    x = 54,736,449.45

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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.