Home / 641,609,428.60-962,414,142.90-156,935,236.60

Finding the Fourth Proportional to 641,609,428.60, 962,414,142.90 and 156,935,236.60

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Solution

The fourth proportional to 641,609,428.60, 962,414,142.90 and 156,935,236.60 is: 235,402,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,609,428.60 : 962,414,142.90 = 156,935,236.60 : x
  2. Step 2: Convert to fraction form
    641,609,428.60/962,414,142.90 = 156,935,236.60/x
  3. Step 3: Cross multiply
    641,609,428.60x = 962,414,142.90 × 156,935,236.60
  4. Step 4: Simplify right side
    641,609,428.60x = 151,036,691,223,197,696
  5. Step 5: Solve for x
    x = 151,036,691,223,197,696/641,609,428.60
  6. Step 6: Final answer
    x = 235,402,854.90

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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.