Home / 929,387,644.28-1,393,570,933.16-638,327,998.52

Finding the Fourth Proportional to 929,387,644.28, 1,393,570,933.16 and 638,327,998.52

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Solution

The fourth proportional to 929,387,644.28, 1,393,570,933.16 and 638,327,998.52 is: 957,141,350.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,387,644.28 : 1,393,570,933.16 = 638,327,998.52 : x
  2. Step 2: Convert to fraction form
    929,387,644.28/1,393,570,933.16 = 638,327,998.52/x
  3. Step 3: Cross multiply
    929,387,644.28x = 1,393,570,933.16 × 638,327,998.52
  4. Step 4: Simplify right side
    929,387,644.28x = 889,555,344,559,671,552
  5. Step 5: Solve for x
    x = 889,555,344,559,671,552/929,387,644.28
  6. Step 6: Final answer
    x = 957,141,350.04

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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.