Home / 280,270,998.72-420,406,524-83,537,460

Finding the Fourth Proportional to 280,270,998.72, 420,406,524 and 83,537,460

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Solution

The fourth proportional to 280,270,998.72, 420,406,524 and 83,537,460 is: 125,306,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,270,998.72 : 420,406,524 = 83,537,460 : x
  2. Step 2: Convert to fraction form
    280,270,998.72/420,406,524 = 83,537,460/x
  3. Step 3: Cross multiply
    280,270,998.72x = 420,406,524 × 83,537,460
  4. Step 4: Simplify right side
    280,270,998.72x = 35,119,693,182,389,040
  5. Step 5: Solve for x
    x = 35,119,693,182,389,040/280,270,998.72
  6. Step 6: Final answer
    x = 125,306,197.73

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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.