Home / 82,700,543.70-124,050,815.55-81,425,085.30

Finding the Fourth Proportional to 82,700,543.70, 124,050,815.55 and 81,425,085.30

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Solution

The fourth proportional to 82,700,543.70, 124,050,815.55 and 81,425,085.30 is: 122,137,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,700,543.70 : 124,050,815.55 = 81,425,085.30 : x
  2. Step 2: Convert to fraction form
    82,700,543.70/124,050,815.55 = 81,425,085.30/x
  3. Step 3: Cross multiply
    82,700,543.70x = 124,050,815.55 × 81,425,085.30
  4. Step 4: Simplify right side
    82,700,543.70x = 10,100,848,237,693,316
  5. Step 5: Solve for x
    x = 10,100,848,237,693,316/82,700,543.70
  6. Step 6: Final answer
    x = 122,137,627.95

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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.