Home / 15,207,660.59-20,985,769.08-8,681,030.51

Finding the Fourth Proportional to 15,207,660.59, 20,985,769.08 and 8,681,030.51

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Solution

The fourth proportional to 15,207,660.59, 20,985,769.08 and 8,681,030.51 is: 11,979,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207,660.59 : 20,985,769.08 = 8,681,030.51 : x
  2. Step 2: Convert to fraction form
    15,207,660.59/20,985,769.08 = 8,681,030.51/x
  3. Step 3: Cross multiply
    15,207,660.59x = 20,985,769.08 × 8,681,030.51
  4. Step 4: Simplify right side
    15,207,660.59x = 182,178,101,554,365.78
  5. Step 5: Solve for x
    x = 182,178,101,554,365.78/15,207,660.59
  6. Step 6: Final answer
    x = 11,979,363.99

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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.