Home / 814,464,698.88-1,221,888,337.92-269,206,174.72

Finding the Fourth Proportional to 814,464,698.88, 1,221,888,337.92 and 269,206,174.72

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Solution

The fourth proportional to 814,464,698.88, 1,221,888,337.92 and 269,206,174.72 is: 403,872,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,464,698.88 : 1,221,888,337.92 = 269,206,174.72 : x
  2. Step 2: Convert to fraction form
    814,464,698.88/1,221,888,337.92 = 269,206,174.72/x
  3. Step 3: Cross multiply
    814,464,698.88x = 1,221,888,337.92 × 269,206,174.72
  4. Step 4: Simplify right side
    814,464,698.88x = 328,939,885,386,421,952
  5. Step 5: Solve for x
    x = 328,939,885,386,421,952/814,464,698.88
  6. Step 6: Final answer
    x = 403,872,489.30

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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.