Home / 804,387,681.12-1,206,548,680.96-279,876,833.76

Finding the Fourth Proportional to 804,387,681.12, 1,206,548,680.96 and 279,876,833.76

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Solution

The fourth proportional to 804,387,681.12, 1,206,548,680.96 and 279,876,833.76 is: 419,803,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,387,681.12 : 1,206,548,680.96 = 279,876,833.76 : x
  2. Step 2: Convert to fraction form
    804,387,681.12/1,206,548,680.96 = 279,876,833.76/x
  3. Step 3: Cross multiply
    804,387,681.12x = 1,206,548,680.96 × 279,876,833.76
  4. Step 4: Simplify right side
    804,387,681.12x = 337,685,024,604,389,184
  5. Step 5: Solve for x
    x = 337,685,024,604,389,184/804,387,681.12
  6. Step 6: Final answer
    x = 419,803,824.11

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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.