Home / 892,107,966.97-1,231,036,817.61-515,788,699.15

Finding the Fourth Proportional to 892,107,966.97, 1,231,036,817.61 and 515,788,699.15

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Solution

The fourth proportional to 892,107,966.97, 1,231,036,817.61 and 515,788,699.15 is: 711,746,674.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,107,966.97 : 1,231,036,817.61 = 515,788,699.15 : x
  2. Step 2: Convert to fraction form
    892,107,966.97/1,231,036,817.61 = 515,788,699.15/x
  3. Step 3: Cross multiply
    892,107,966.97x = 1,231,036,817.61 × 515,788,699.15
  4. Step 4: Simplify right side
    892,107,966.97x = 634,954,878,760,817,664
  5. Step 5: Solve for x
    x = 634,954,878,760,817,664/892,107,966.97
  6. Step 6: Final answer
    x = 711,746,674.47

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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.