Home / 1,299,216,876.84-1,948,047,043.86-413,519,658.48

Finding the Fourth Proportional to 1,299,216,876.84, 1,948,047,043.86 and 413,519,658.48

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Solution

The fourth proportional to 1,299,216,876.84, 1,948,047,043.86 and 413,519,658.48 is: 620,031,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,216,876.84 : 1,948,047,043.86 = 413,519,658.48 : x
  2. Step 2: Convert to fraction form
    1,299,216,876.84/1,948,047,043.86 = 413,519,658.48/x
  3. Step 3: Cross multiply
    1,299,216,876.84x = 1,948,047,043.86 × 413,519,658.48
  4. Step 4: Simplify right side
    1,299,216,876.84x = 805,555,748,279,960,832
  5. Step 5: Solve for x
    x = 805,555,748,279,960,832/1,299,216,876.84
  6. Step 6: Final answer
    x = 620,031,776.56

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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.