Home / 280,301,708.70-420,452,563.05-124,855,216.20

Finding the Fourth Proportional to 280,301,708.70, 420,452,563.05 and 124,855,216.20

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Solution

The fourth proportional to 280,301,708.70, 420,452,563.05 and 124,855,216.20 is: 187,282,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,301,708.70 : 420,452,563.05 = 124,855,216.20 : x
  2. Step 2: Convert to fraction form
    280,301,708.70/420,452,563.05 = 124,855,216.20/x
  3. Step 3: Cross multiply
    280,301,708.70x = 420,452,563.05 × 124,855,216.20
  4. Step 4: Simplify right side
    280,301,708.70x = 52,495,695,661,451,888
  5. Step 5: Solve for x
    x = 52,495,695,661,451,888/280,301,708.70
  6. Step 6: Final answer
    x = 187,282,824.30

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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.