Home / 891,042,451.48-1,229,538,855.40-494,582,151.07

Finding the Fourth Proportional to 891,042,451.48, 1,229,538,855.40 and 494,582,151.07

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Solution

The fourth proportional to 891,042,451.48, 1,229,538,855.40 and 494,582,151.07 is: 682,468,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,042,451.48 : 1,229,538,855.40 = 494,582,151.07 : x
  2. Step 2: Convert to fraction form
    891,042,451.48/1,229,538,855.40 = 494,582,151.07/x
  3. Step 3: Cross multiply
    891,042,451.48x = 1,229,538,855.40 × 494,582,151.07
  4. Step 4: Simplify right side
    891,042,451.48x = 608,107,971,927,877,760
  5. Step 5: Solve for x
    x = 608,107,971,927,877,760/891,042,451.48
  6. Step 6: Final answer
    x = 682,468,013.64

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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.