Home / 407,859,601.24-611,788,847.82-189,390,480.04

Finding the Fourth Proportional to 407,859,601.24, 611,788,847.82 and 189,390,480.04

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Solution

The fourth proportional to 407,859,601.24, 611,788,847.82 and 189,390,480.04 is: 284,085,462.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,859,601.24 : 611,788,847.82 = 189,390,480.04 : x
  2. Step 2: Convert to fraction form
    407,859,601.24/611,788,847.82 = 189,390,480.04/x
  3. Step 3: Cross multiply
    407,859,601.24x = 611,788,847.82 × 189,390,480.04
  4. Step 4: Simplify right side
    407,859,601.24x = 115,866,983,571,748,320
  5. Step 5: Solve for x
    x = 115,866,983,571,748,320/407,859,601.24
  6. Step 6: Final answer
    x = 284,085,462.79

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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.