Home / 805,143,185.12-1,207,415,743.67-280,377,526.95

Finding the Fourth Proportional to 805,143,185.12, 1,207,415,743.67 and 280,377,526.95

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Solution

The fourth proportional to 805,143,185.12, 1,207,415,743.67 and 280,377,526.95 is: 420,462,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,143,185.12 : 1,207,415,743.67 = 280,377,526.95 : x
  2. Step 2: Convert to fraction form
    805,143,185.12/1,207,415,743.67 = 280,377,526.95/x
  3. Step 3: Cross multiply
    805,143,185.12x = 1,207,415,743.67 × 280,377,526.95
  4. Step 4: Simplify right side
    805,143,185.12x = 338,532,240,211,390,592
  5. Step 5: Solve for x
    x = 338,532,240,211,390,592/805,143,185.12
  6. Step 6: Final answer
    x = 420,462,156.88

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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.