Home / 69,727,386.40-104,595,016.20-21,206,823.10

Finding the Fourth Proportional to 69,727,386.40, 104,595,016.20 and 21,206,823.10

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Solution

The fourth proportional to 69,727,386.40, 104,595,016.20 and 21,206,823.10 is: 31,811,431.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,727,386.40 : 104,595,016.20 = 21,206,823.10 : x
  2. Step 2: Convert to fraction form
    69,727,386.40/104,595,016.20 = 21,206,823.10/x
  3. Step 3: Cross multiply
    69,727,386.40x = 104,595,016.20 × 21,206,823.10
  4. Step 4: Simplify right side
    69,727,386.40x = 2,218,128,005,695,034.50
  5. Step 5: Solve for x
    x = 2,218,128,005,695,034.50/69,727,386.40
  6. Step 6: Final answer
    x = 31,811,431.92

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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.