Home / 80,749,691,125.70-121,124,536,688.55-54,301,785,743.30

Finding the Fourth Proportional to 80,749,691,125.70, 121,124,536,688.55 and 54,301,785,743.30

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Solution

The fourth proportional to 80,749,691,125.70, 121,124,536,688.55 and 54,301,785,743.30 is: 81,452,678,614.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749,691,125.70 : 121,124,536,688.55 = 54,301,785,743.30 : x
  2. Step 2: Convert to fraction form
    80,749,691,125.70/121,124,536,688.55 = 54,301,785,743.30/x
  3. Step 3: Cross multiply
    80,749,691,125.70x = 121,124,536,688.55 × 54,301,785,743.30
  4. Step 4: Simplify right side
    80,749,691,125.70x = 6,577,278,639,518,123,032,576
  5. Step 5: Solve for x
    x = 6,577,278,639,518,123,032,576/80,749,691,125.70
  6. Step 6: Final answer
    x = 81,452,678,614.95

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1.5x scale

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.