Home / 91,493,043.60-137,345,853.60-55,142,479.20

Finding the Fourth Proportional to 91,493,043.60, 137,345,853.60 and 55,142,479.20

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Solution

The fourth proportional to 91,493,043.60, 137,345,853.60 and 55,142,479.20 is: 82,777,778.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,493,043.60 : 137,345,853.60 = 55,142,479.20 : x
  2. Step 2: Convert to fraction form
    91,493,043.60/137,345,853.60 = 55,142,479.20/x
  3. Step 3: Cross multiply
    91,493,043.60x = 137,345,853.60 × 55,142,479.20
  4. Step 4: Simplify right side
    91,493,043.60x = 7,573,590,875,344,245
  5. Step 5: Solve for x
    x = 7,573,590,875,344,245/91,493,043.60
  6. Step 6: Final answer
    x = 82,777,778.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.