Home / 889,236,195.11-1,227,153,260.28-492,765,805.74

Finding the Fourth Proportional to 889,236,195.11, 1,227,153,260.28 and 492,765,805.74

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Solution

The fourth proportional to 889,236,195.11, 1,227,153,260.28 and 492,765,805.74 is: 680,020,863.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,236,195.11 : 1,227,153,260.28 = 492,765,805.74 : x
  2. Step 2: Convert to fraction form
    889,236,195.11/1,227,153,260.28 = 492,765,805.74/x
  3. Step 3: Cross multiply
    889,236,195.11x = 1,227,153,260.28 × 492,765,805.74
  4. Step 4: Simplify right side
    889,236,195.11x = 604,699,165,068,342,144
  5. Step 5: Solve for x
    x = 604,699,165,068,342,144/889,236,195.11
  6. Step 6: Final answer
    x = 680,020,863.29

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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.