Home / 782,919,732.04-1,079,426,269.11-641,269,119.85

Finding the Fourth Proportional to 782,919,732.04, 1,079,426,269.11 and 641,269,119.85

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Solution

The fourth proportional to 782,919,732.04, 1,079,426,269.11 and 641,269,119.85 is: 884,129,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,919,732.04 : 1,079,426,269.11 = 641,269,119.85 : x
  2. Step 2: Convert to fraction form
    782,919,732.04/1,079,426,269.11 = 641,269,119.85/x
  3. Step 3: Cross multiply
    782,919,732.04x = 1,079,426,269.11 × 641,269,119.85
  4. Step 4: Simplify right side
    782,919,732.04x = 692,202,733,535,138,944
  5. Step 5: Solve for x
    x = 692,202,733,535,138,944/782,919,732.04
  6. Step 6: Final answer
    x = 884,129,886.13

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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.