Home / 91,493,038.60-137,345,846.10-55,142,474.20

Finding the Fourth Proportional to 91,493,038.60, 137,345,846.10 and 55,142,474.20

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Solution

The fourth proportional to 91,493,038.60, 137,345,846.10 and 55,142,474.20 is: 82,777,770.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,493,038.60 : 137,345,846.10 = 55,142,474.20 : x
  2. Step 2: Convert to fraction form
    91,493,038.60/137,345,846.10 = 55,142,474.20/x
  3. Step 3: Cross multiply
    91,493,038.60x = 137,345,846.10 × 55,142,474.20
  4. Step 4: Simplify right side
    91,493,038.60x = 7,573,589,775,046,421
  5. Step 5: Solve for x
    x = 7,573,589,775,046,421/91,493,038.60
  6. Step 6: Final answer
    x = 82,777,770.76

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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.