Home / 805,143,184.86-1,207,415,743.30-280,377,526.69

Finding the Fourth Proportional to 805,143,184.86, 1,207,415,743.30 and 280,377,526.69

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Solution

The fourth proportional to 805,143,184.86, 1,207,415,743.30 and 280,377,526.69 is: 420,462,156.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,143,184.86 : 1,207,415,743.30 = 280,377,526.69 : x
  2. Step 2: Convert to fraction form
    805,143,184.86/1,207,415,743.30 = 280,377,526.69/x
  3. Step 3: Cross multiply
    805,143,184.86x = 1,207,415,743.30 × 280,377,526.69
  4. Step 4: Simplify right side
    805,143,184.86x = 338,532,239,793,021,952
  5. Step 5: Solve for x
    x = 338,532,239,793,021,952/805,143,184.86
  6. Step 6: Final answer
    x = 420,462,156.49

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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.