Home / 87,156,014.40-130,734,021.60-53,143,790.40

Finding the Fourth Proportional to 87,156,014.40, 130,734,021.60 and 53,143,790.40

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Solution

The fourth proportional to 87,156,014.40, 130,734,021.60 and 53,143,790.40 is: 79,715,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156,014.40 : 130,734,021.60 = 53,143,790.40 : x
  2. Step 2: Convert to fraction form
    87,156,014.40/130,734,021.60 = 53,143,790.40/x
  3. Step 3: Cross multiply
    87,156,014.40x = 130,734,021.60 × 53,143,790.40
  4. Step 4: Simplify right side
    87,156,014.40x = 6,947,701,442,059,472
  5. Step 5: Solve for x
    x = 6,947,701,442,059,472/87,156,014.40
  6. Step 6: Final answer
    x = 79,715,685.60

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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.