Home / 1,979,456,405.28-2,731,602,193.56-1,099,390,809.12

Finding the Fourth Proportional to 1,979,456,405.28, 2,731,602,193.56 and 1,099,390,809.12

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Solution

The fourth proportional to 1,979,456,405.28, 2,731,602,193.56 and 1,099,390,809.12 is: 1,517,132,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,456,405.28 : 2,731,602,193.56 = 1,099,390,809.12 : x
  2. Step 2: Convert to fraction form
    1,979,456,405.28/2,731,602,193.56 = 1,099,390,809.12/x
  3. Step 3: Cross multiply
    1,979,456,405.28x = 2,731,602,193.56 × 1,099,390,809.12
  4. Step 4: Simplify right side
    1,979,456,405.28x = 3,003,098,345,771,894,784
  5. Step 5: Solve for x
    x = 3,003,098,345,771,894,784/1,979,456,405.28
  6. Step 6: Final answer
    x = 1,517,132,854.13

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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.