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Finding the Fourth Proportional to 91,738,687.70, 137,608,031.55 and 87,487,159.70

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Solution

The fourth proportional to 91,738,687.70, 137,608,031.55 and 87,487,159.70 is: 131,230,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,738,687.70 : 137,608,031.55 = 87,487,159.70 : x
  2. Step 2: Convert to fraction form
    91,738,687.70/137,608,031.55 = 87,487,159.70/x
  3. Step 3: Cross multiply
    91,738,687.70x = 137,608,031.55 × 87,487,159.70
  4. Step 4: Simplify right side
    91,738,687.70x = 12,038,935,832,217,490
  5. Step 5: Solve for x
    x = 12,038,935,832,217,490/91,738,687.70
  6. Step 6: Final answer
    x = 131,230,739.55

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