Home / 864,921,021.28-1,193,610,282.96-493,635,605.92

Finding the Fourth Proportional to 864,921,021.28, 1,193,610,282.96 and 493,635,605.92

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Solution

The fourth proportional to 864,921,021.28, 1,193,610,282.96 and 493,635,605.92 is: 681,228,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,921,021.28 : 1,193,610,282.96 = 493,635,605.92 : x
  2. Step 2: Convert to fraction form
    864,921,021.28/1,193,610,282.96 = 493,635,605.92/x
  3. Step 3: Cross multiply
    864,921,021.28x = 1,193,610,282.96 × 493,635,605.92
  4. Step 4: Simplify right side
    864,921,021.28x = 589,208,535,261,302,272
  5. Step 5: Solve for x
    x = 589,208,535,261,302,272/864,921,021.28
  6. Step 6: Final answer
    x = 681,228,136.17

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1.5x scale

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.