Home / 951,586,919.55-1,427,348,970.77-391,329,359.55

Finding the Fourth Proportional to 951,586,919.55, 1,427,348,970.77 and 391,329,359.55

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Solution

The fourth proportional to 951,586,919.55, 1,427,348,970.77 and 391,329,359.55 is: 586,981,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,586,919.55 : 1,427,348,970.77 = 391,329,359.55 : x
  2. Step 2: Convert to fraction form
    951,586,919.55/1,427,348,970.77 = 391,329,359.55/x
  3. Step 3: Cross multiply
    951,586,919.55x = 1,427,348,970.77 × 391,329,359.55
  4. Step 4: Simplify right side
    951,586,919.55x = 558,563,558,583,819,200
  5. Step 5: Solve for x
    x = 558,563,558,583,819,200/951,586,919.55
  6. Step 6: Final answer
    x = 586,981,122.91

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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.