Home / 280,483,501.20-420,725,251.80-125,037,008.70

Finding the Fourth Proportional to 280,483,501.20, 420,725,251.80 and 125,037,008.70

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Solution

The fourth proportional to 280,483,501.20, 420,725,251.80 and 125,037,008.70 is: 187,555,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,483,501.20 : 420,725,251.80 = 125,037,008.70 : x
  2. Step 2: Convert to fraction form
    280,483,501.20/420,725,251.80 = 125,037,008.70/x
  3. Step 3: Cross multiply
    280,483,501.20x = 420,725,251.80 × 125,037,008.70
  4. Step 4: Simplify right side
    280,483,501.20x = 52,606,226,969,626,296
  5. Step 5: Solve for x
    x = 52,606,226,969,626,296/280,483,501.20
  6. Step 6: Final answer
    x = 187,555,513.05

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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.