Home / 1,988,171,489-2,982,687,722.58-761,339,984.24

Finding the Fourth Proportional to 1,988,171,489, 2,982,687,722.58 and 761,339,984.24

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Solution

The fourth proportional to 1,988,171,489, 2,982,687,722.58 and 761,339,984.24 is: 1,142,174,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,171,489 : 2,982,687,722.58 = 761,339,984.24 : x
  2. Step 2: Convert to fraction form
    1,988,171,489/2,982,687,722.58 = 761,339,984.24/x
  3. Step 3: Cross multiply
    1,988,171,489x = 2,982,687,722.58 × 761,339,984.24
  4. Step 4: Simplify right side
    1,988,171,489x = 2,270,839,423,701,898,752
  5. Step 5: Solve for x
    x = 2,270,839,423,701,898,752/1,988,171,489
  6. Step 6: Final answer
    x = 1,142,174,825.60

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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.