Home / 1,420,194,005.30-2,128,947,315.15-838,375,022.90

Finding the Fourth Proportional to 1,420,194,005.30, 2,128,947,315.15 and 838,375,022.90

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Solution

The fourth proportional to 1,420,194,005.30, 2,128,947,315.15 and 838,375,022.90 is: 1,256,769,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,194,005.30 : 2,128,947,315.15 = 838,375,022.90 : x
  2. Step 2: Convert to fraction form
    1,420,194,005.30/2,128,947,315.15 = 838,375,022.90/x
  3. Step 3: Cross multiply
    1,420,194,005.30x = 2,128,947,315.15 × 838,375,022.90
  4. Step 4: Simplify right side
    1,420,194,005.30x = 1,784,856,254,091,774,720
  5. Step 5: Solve for x
    x = 1,784,856,254,091,774,720/1,420,194,005.30
  6. Step 6: Final answer
    x = 1,256,769,319.85

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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.