Home / 155,987,809.88-215,487,404.28-124,584,628.80

Finding the Fourth Proportional to 155,987,809.88, 215,487,404.28 and 124,584,628.80

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Solution

The fourth proportional to 155,987,809.88, 215,487,404.28 and 124,584,628.80 is: 172,105,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,987,809.88 : 215,487,404.28 = 124,584,628.80 : x
  2. Step 2: Convert to fraction form
    155,987,809.88/215,487,404.28 = 124,584,628.80/x
  3. Step 3: Cross multiply
    155,987,809.88x = 215,487,404.28 × 124,584,628.80
  4. Step 4: Simplify right side
    155,987,809.88x = 26,846,418,273,299,332
  5. Step 5: Solve for x
    x = 26,846,418,273,299,332/155,987,809.88
  6. Step 6: Final answer
    x = 172,105,873.49

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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.