Home / 1,988,171,194.62-2,982,687,281.08-761,339,689.86

Finding the Fourth Proportional to 1,988,171,194.62, 2,982,687,281.08 and 761,339,689.86

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Solution

The fourth proportional to 1,988,171,194.62, 2,982,687,281.08 and 761,339,689.86 is: 1,142,174,384.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,171,194.62 : 2,982,687,281.08 = 761,339,689.86 : x
  2. Step 2: Convert to fraction form
    1,988,171,194.62/2,982,687,281.08 = 761,339,689.86/x
  3. Step 3: Cross multiply
    1,988,171,194.62x = 2,982,687,281.08 × 761,339,689.86
  4. Step 4: Simplify right side
    1,988,171,194.62x = 2,270,838,209,526,813,952
  5. Step 5: Solve for x
    x = 2,270,838,209,526,813,952/1,988,171,194.62
  6. Step 6: Final answer
    x = 1,142,174,384.01

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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.