Home / 10,530,234.70-15,771,732.45-8,640,666.70

Finding the Fourth Proportional to 10,530,234.70, 15,771,732.45 and 8,640,666.70

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Solution

The fourth proportional to 10,530,234.70, 15,771,732.45 and 8,640,666.70 is: 12,941,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530,234.70 : 15,771,732.45 = 8,640,666.70 : x
  2. Step 2: Convert to fraction form
    10,530,234.70/15,771,732.45 = 8,640,666.70/x
  3. Step 3: Cross multiply
    10,530,234.70x = 15,771,732.45 × 8,640,666.70
  4. Step 4: Simplify right side
    10,530,234.70x = 136,278,283,382,024.39
  5. Step 5: Solve for x
    x = 136,278,283,382,024.39/10,530,234.70
  6. Step 6: Final answer
    x = 12,941,618.80

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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.