Home / 1,988,171,490-2,982,687,724.08-761,339,985.24

Finding the Fourth Proportional to 1,988,171,490, 2,982,687,724.08 and 761,339,985.24

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Solution

The fourth proportional to 1,988,171,490, 2,982,687,724.08 and 761,339,985.24 is: 1,142,174,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,171,490 : 2,982,687,724.08 = 761,339,985.24 : x
  2. Step 2: Convert to fraction form
    1,988,171,490/2,982,687,724.08 = 761,339,985.24/x
  3. Step 3: Cross multiply
    1,988,171,490x = 2,982,687,724.08 × 761,339,985.24
  4. Step 4: Simplify right side
    1,988,171,490x = 2,270,839,427,826,596,352
  5. Step 5: Solve for x
    x = 2,270,839,427,826,596,352/1,988,171,490
  6. Step 6: Final answer
    x = 1,142,174,827.10

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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.