Home / 20,738,038.74-31,111,071.26-7,957,549.74

Finding the Fourth Proportional to 20,738,038.74, 31,111,071.26 and 7,957,549.74

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Solution

The fourth proportional to 20,738,038.74, 31,111,071.26 and 7,957,549.74 is: 11,937,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,038.74 : 31,111,071.26 = 7,957,549.74 : x
  2. Step 2: Convert to fraction form
    20,738,038.74/31,111,071.26 = 7,957,549.74/x
  3. Step 3: Cross multiply
    20,738,038.74x = 31,111,071.26 × 7,957,549.74
  4. Step 4: Simplify right side
    20,738,038.74x = 247,567,897,016,134.50
  5. Step 5: Solve for x
    x = 247,567,897,016,134.50/20,738,038.74
  6. Step 6: Final answer
    x = 11,937,864.53

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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.