Home / 653,238,071.55-979,857,107.33-326,720,721.15

Finding the Fourth Proportional to 653,238,071.55, 979,857,107.33 and 326,720,721.15

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Solution

The fourth proportional to 653,238,071.55, 979,857,107.33 and 326,720,721.15 is: 490,081,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,238,071.55 : 979,857,107.33 = 326,720,721.15 : x
  2. Step 2: Convert to fraction form
    653,238,071.55/979,857,107.33 = 326,720,721.15/x
  3. Step 3: Cross multiply
    653,238,071.55x = 979,857,107.33 × 326,720,721.15
  4. Step 4: Simplify right side
    653,238,071.55x = 320,139,620,729,176,960
  5. Step 5: Solve for x
    x = 320,139,620,729,176,960/653,238,071.55
  6. Step 6: Final answer
    x = 490,081,081.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.