Home / 8,781,322.40-13,147,100.40-7,885,527.20

Finding the Fourth Proportional to 8,781,322.40, 13,147,100.40 and 7,885,527.20

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Solution

The fourth proportional to 8,781,322.40, 13,147,100.40 and 7,885,527.20 is: 11,805,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781,322.40 : 13,147,100.40 = 7,885,527.20 : x
  2. Step 2: Convert to fraction form
    8,781,322.40/13,147,100.40 = 7,885,527.20/x
  3. Step 3: Cross multiply
    8,781,322.40x = 13,147,100.40 × 7,885,527.20
  4. Step 4: Simplify right side
    8,781,322.40x = 103,671,817,805,330.89
  5. Step 5: Solve for x
    x = 103,671,817,805,330.89/8,781,322.40
  6. Step 6: Final answer
    x = 11,805,945.97

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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.