Home / 280,598,037.20-420,887,569.08-98,840,465.36

Finding the Fourth Proportional to 280,598,037.20, 420,887,569.08 and 98,840,465.36

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Solution

The fourth proportional to 280,598,037.20, 420,887,569.08 and 98,840,465.36 is: 148,257,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,598,037.20 : 420,887,569.08 = 98,840,465.36 : x
  2. Step 2: Convert to fraction form
    280,598,037.20/420,887,569.08 = 98,840,465.36/x
  3. Step 3: Cross multiply
    280,598,037.20x = 420,887,569.08 × 98,840,465.36
  4. Step 4: Simplify right side
    280,598,037.20x = 41,600,723,192,106,344
  5. Step 5: Solve for x
    x = 41,600,723,192,106,344/280,598,037.20
  6. Step 6: Final answer
    x = 148,257,356.35

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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.