Home / 971,072,143.86-1,340,202,293.60-636,825,869.85

Finding the Fourth Proportional to 971,072,143.86, 1,340,202,293.60 and 636,825,869.85

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Solution

The fourth proportional to 971,072,143.86, 1,340,202,293.60 and 636,825,869.85 is: 878,900,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,072,143.86 : 1,340,202,293.60 = 636,825,869.85 : x
  2. Step 2: Convert to fraction form
    971,072,143.86/1,340,202,293.60 = 636,825,869.85/x
  3. Step 3: Cross multiply
    971,072,143.86x = 1,340,202,293.60 × 636,825,869.85
  4. Step 4: Simplify right side
    971,072,143.86x = 853,475,491,393,601,024
  5. Step 5: Solve for x
    x = 853,475,491,393,601,024/971,072,143.86
  6. Step 6: Final answer
    x = 878,900,189.64

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.