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Finding the Fourth Proportional to 78,149,859.04, 107,747,693.04 and 55,849,480.48

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Solution

The fourth proportional to 78,149,859.04, 107,747,693.04 and 55,849,480.48 is: 77,001,452.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,149,859.04 : 107,747,693.04 = 55,849,480.48 : x
  2. Step 2: Convert to fraction form
    78,149,859.04/107,747,693.04 = 55,849,480.48/x
  3. Step 3: Cross multiply
    78,149,859.04x = 107,747,693.04 × 55,849,480.48
  4. Step 4: Simplify right side
    78,149,859.04x = 6,017,652,679,202,512
  5. Step 5: Solve for x
    x = 6,017,652,679,202,512/78,149,859.04
  6. Step 6: Final answer
    x = 77,001,452.76

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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.