Home / 39,960,859.65-55,145,985.79-21,626,145.15

Finding the Fourth Proportional to 39,960,859.65, 55,145,985.79 and 21,626,145.15

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Solution

The fourth proportional to 39,960,859.65, 55,145,985.79 and 21,626,145.15 is: 29,844,080.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,859.65 : 55,145,985.79 = 21,626,145.15 : x
  2. Step 2: Convert to fraction form
    39,960,859.65/55,145,985.79 = 21,626,145.15/x
  3. Step 3: Cross multiply
    39,960,859.65x = 55,145,985.79 × 21,626,145.15
  4. Step 4: Simplify right side
    39,960,859.65x = 1,192,595,092,914,063.50
  5. Step 5: Solve for x
    x = 1,192,595,092,914,063.50/39,960,859.65
  6. Step 6: Final answer
    x = 29,844,080.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.