Home / 813,140,749,201.88-1,123,744,250,778.20-666,421,797,264.84

Finding the Fourth Proportional to 813,140,749,201.88, 1,123,744,250,778.20 and 666,421,797,264.84

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Solution

The fourth proportional to 813,140,749,201.88, 1,123,744,250,778.20 and 666,421,797,264.84 is: 920,981,593,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,140,749,201.88 : 1,123,744,250,778.20 = 666,421,797,264.84 : x
  2. Step 2: Convert to fraction form
    813,140,749,201.88/1,123,744,250,778.20 = 666,421,797,264.84/x
  3. Step 3: Cross multiply
    813,140,749,201.88x = 1,123,744,250,778.20 × 666,421,797,264.84
  4. Step 4: Simplify right side
    813,140,749,201.88x = 748,887,663,269,639,035,551,744
  5. Step 5: Solve for x
    x = 748,887,663,269,639,035,551,744/813,140,749,201.88
  6. Step 6: Final answer
    x = 920,981,593,905.72

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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.