Home / 129,664,339.28-194,510,133.45-42,232,664.55

Finding the Fourth Proportional to 129,664,339.28, 194,510,133.45 and 42,232,664.55

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Solution

The fourth proportional to 129,664,339.28, 194,510,133.45 and 42,232,664.55 is: 63,353,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,664,339.28 : 194,510,133.45 = 42,232,664.55 : x
  2. Step 2: Convert to fraction form
    129,664,339.28/194,510,133.45 = 42,232,664.55/x
  3. Step 3: Cross multiply
    129,664,339.28x = 194,510,133.45 × 42,232,664.55
  4. Step 4: Simplify right side
    129,664,339.28x = 8,214,681,216,846,177
  5. Step 5: Solve for x
    x = 8,214,681,216,846,177/129,664,339.28
  6. Step 6: Final answer
    x = 63,353,434.43

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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.