Home / 13,721,474.16-18,932,602.20-7,919,022.96

Finding the Fourth Proportional to 13,721,474.16, 18,932,602.20 and 7,919,022.96

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Solution

The fourth proportional to 13,721,474.16, 18,932,602.20 and 7,919,022.96 is: 10,926,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,474.16 : 18,932,602.20 = 7,919,022.96 : x
  2. Step 2: Convert to fraction form
    13,721,474.16/18,932,602.20 = 7,919,022.96/x
  3. Step 3: Cross multiply
    13,721,474.16x = 18,932,602.20 × 7,919,022.96
  4. Step 4: Simplify right side
    13,721,474.16x = 149,927,711,514,346.50
  5. Step 5: Solve for x
    x = 149,927,711,514,346.50/13,721,474.16
  6. Step 6: Final answer
    x = 10,926,501.76

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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.