Home / 12,591,988.16-18,885,869.20-3,495,009.92

Finding the Fourth Proportional to 12,591,988.16, 18,885,869.20 and 3,495,009.92

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Solution

The fourth proportional to 12,591,988.16, 18,885,869.20 and 3,495,009.92 is: 5,241,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,988.16 : 18,885,869.20 = 3,495,009.92 : x
  2. Step 2: Convert to fraction form
    12,591,988.16/18,885,869.20 = 3,495,009.92/x
  3. Step 3: Cross multiply
    12,591,988.16x = 18,885,869.20 × 3,495,009.92
  4. Step 4: Simplify right side
    12,591,988.16x = 66,006,300,201,822.46
  5. Step 5: Solve for x
    x = 66,006,300,201,822.46/12,591,988.16
  6. Step 6: Final answer
    x = 5,241,928.39

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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.