Home / 280,453,254.48-420,659,952.57-86,344,429.23

Finding the Fourth Proportional to 280,453,254.48, 420,659,952.57 and 86,344,429.23

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Solution

The fourth proportional to 280,453,254.48, 420,659,952.57 and 86,344,429.23 is: 129,510,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,453,254.48 : 420,659,952.57 = 86,344,429.23 : x
  2. Step 2: Convert to fraction form
    280,453,254.48/420,659,952.57 = 86,344,429.23/x
  3. Step 3: Cross multiply
    280,453,254.48x = 420,659,952.57 × 86,344,429.23
  4. Step 4: Simplify right side
    280,453,254.48x = 36,321,643,504,575,520
  5. Step 5: Solve for x
    x = 36,321,643,504,575,520/280,453,254.48
  6. Step 6: Final answer
    x = 129,510,508.17

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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.