Home / 3,986,640,002.10-5,979,960,003.15-1,915,862,430.90

Finding the Fourth Proportional to 3,986,640,002.10, 5,979,960,003.15 and 1,915,862,430.90

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Solution

The fourth proportional to 3,986,640,002.10, 5,979,960,003.15 and 1,915,862,430.90 is: 2,873,793,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,640,002.10 : 5,979,960,003.15 = 1,915,862,430.90 : x
  2. Step 2: Convert to fraction form
    3,986,640,002.10/5,979,960,003.15 = 1,915,862,430.90/x
  3. Step 3: Cross multiply
    3,986,640,002.10x = 5,979,960,003.15 × 1,915,862,430.90
  4. Step 4: Simplify right side
    3,986,640,002.10x = 11,456,780,708,319,729,664
  5. Step 5: Solve for x
    x = 11,456,780,708,319,729,664/3,986,640,002.10
  6. Step 6: Final answer
    x = 2,873,793,646.35

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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.