Home / 18,619,841.40-25,698,938.52-12,329,273.43

Finding the Fourth Proportional to 18,619,841.40, 25,698,938.52 and 12,329,273.43

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Solution

The fourth proportional to 18,619,841.40, 25,698,938.52 and 12,329,273.43 is: 17,016,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619,841.40 : 25,698,938.52 = 12,329,273.43 : x
  2. Step 2: Convert to fraction form
    18,619,841.40/25,698,938.52 = 12,329,273.43/x
  3. Step 3: Cross multiply
    18,619,841.40x = 25,698,938.52 × 12,329,273.43
  4. Step 4: Simplify right side
    18,619,841.40x = 316,849,239,873,839.50
  5. Step 5: Solve for x
    x = 316,849,239,873,839.50/18,619,841.40
  6. Step 6: Final answer
    x = 17,016,752.89

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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.