Home / 1,381,404,680.68-2,071,884,479.90-385,451,474.48

Finding the Fourth Proportional to 1,381,404,680.68, 2,071,884,479.90 and 385,451,474.48

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Solution

The fourth proportional to 1,381,404,680.68, 2,071,884,479.90 and 385,451,474.48 is: 578,115,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,404,680.68 : 2,071,884,479.90 = 385,451,474.48 : x
  2. Step 2: Convert to fraction form
    1,381,404,680.68/2,071,884,479.90 = 385,451,474.48/x
  3. Step 3: Cross multiply
    1,381,404,680.68x = 2,071,884,479.90 × 385,451,474.48
  4. Step 4: Simplify right side
    1,381,404,680.68x = 798,610,927,732,935,424
  5. Step 5: Solve for x
    x = 798,610,927,732,935,424/1,381,404,680.68
  6. Step 6: Final answer
    x = 578,115,116.38

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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.