Home / 153,253,448.88-211,494,694.08-87,172,252.56

Finding the Fourth Proportional to 153,253,448.88, 211,494,694.08 and 87,172,252.56

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Solution

The fourth proportional to 153,253,448.88, 211,494,694.08 and 87,172,252.56 is: 120,300,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,253,448.88 : 211,494,694.08 = 87,172,252.56 : x
  2. Step 2: Convert to fraction form
    153,253,448.88/211,494,694.08 = 87,172,252.56/x
  3. Step 3: Cross multiply
    153,253,448.88x = 211,494,694.08 × 87,172,252.56
  4. Step 4: Simplify right side
    153,253,448.88x = 18,436,468,887,441,700
  5. Step 5: Solve for x
    x = 18,436,468,887,441,700/153,253,448.88
  6. Step 6: Final answer
    x = 120,300,515.40

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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.