Home / 122,376,581.98-168,891,882.52-91,382,942.86

Finding the Fourth Proportional to 122,376,581.98, 168,891,882.52 and 91,382,942.86

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Solution

The fourth proportional to 122,376,581.98, 168,891,882.52 and 91,382,942.86 is: 126,117,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,376,581.98 : 168,891,882.52 = 91,382,942.86 : x
  2. Step 2: Convert to fraction form
    122,376,581.98/168,891,882.52 = 91,382,942.86/x
  3. Step 3: Cross multiply
    122,376,581.98x = 168,891,882.52 × 91,382,942.86
  4. Step 4: Simplify right side
    122,376,581.98x = 15,433,837,249,842,994
  5. Step 5: Solve for x
    x = 15,433,837,249,842,994/122,376,581.98
  6. Step 6: Final answer
    x = 126,117,570.86

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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.