Home / 13,721,472.16-18,932,599.44-7,919,020.96

Finding the Fourth Proportional to 13,721,472.16, 18,932,599.44 and 7,919,020.96

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Solution

The fourth proportional to 13,721,472.16, 18,932,599.44 and 7,919,020.96 is: 10,926,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,472.16 : 18,932,599.44 = 7,919,020.96 : x
  2. Step 2: Convert to fraction form
    13,721,472.16/18,932,599.44 = 7,919,020.96/x
  3. Step 3: Cross multiply
    13,721,472.16x = 18,932,599.44 × 7,919,020.96
  4. Step 4: Simplify right side
    13,721,472.16x = 149,927,651,792,644.28
  5. Step 5: Solve for x
    x = 149,927,651,792,644.28/13,721,472.16
  6. Step 6: Final answer
    x = 10,926,499.00

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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.