Home / 30,426,879.11-45,645,633.05-13,387,109.18

Finding the Fourth Proportional to 30,426,879.11, 45,645,633.05 and 13,387,109.18

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Solution

The fourth proportional to 30,426,879.11, 45,645,633.05 and 13,387,109.18 is: 20,083,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426,879.11 : 45,645,633.05 = 13,387,109.18 : x
  2. Step 2: Convert to fraction form
    30,426,879.11/45,645,633.05 = 13,387,109.18/x
  3. Step 3: Cross multiply
    30,426,879.11x = 45,645,633.05 × 13,387,109.18
  4. Step 4: Simplify right side
    30,426,879.11x = 611,063,072,935,402.75
  5. Step 5: Solve for x
    x = 611,063,072,935,402.75/30,426,879.11
  6. Step 6: Final answer
    x = 20,083,001.97

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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.