Home / 1,988,171,202.64-2,982,687,293.12-761,339,697.88

Finding the Fourth Proportional to 1,988,171,202.64, 2,982,687,293.12 and 761,339,697.88

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Solution

The fourth proportional to 1,988,171,202.64, 2,982,687,293.12 and 761,339,697.88 is: 1,142,174,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,171,202.64 : 2,982,687,293.12 = 761,339,697.88 : x
  2. Step 2: Convert to fraction form
    1,988,171,202.64/2,982,687,293.12 = 761,339,697.88/x
  3. Step 3: Cross multiply
    1,988,171,202.64x = 2,982,687,293.12 × 761,339,697.88
  4. Step 4: Simplify right side
    1,988,171,202.64x = 2,270,838,242,614,495,744
  5. Step 5: Solve for x
    x = 2,270,838,242,614,495,744/1,988,171,202.64
  6. Step 6: Final answer
    x = 1,142,174,396.05

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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.