Home / 13,348,875.88-20,123,366.33-12,459,037.18

Finding the Fourth Proportional to 13,348,875.88, 20,123,366.33 and 12,459,037.18

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Solution

The fourth proportional to 13,348,875.88, 20,123,366.33 and 12,459,037.18 is: 18,781,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,875.88 : 20,123,366.33 = 12,459,037.18 : x
  2. Step 2: Convert to fraction form
    13,348,875.88/20,123,366.33 = 12,459,037.18/x
  3. Step 3: Cross multiply
    13,348,875.88x = 20,123,366.33 × 12,459,037.18
  4. Step 4: Simplify right side
    13,348,875.88x = 250,717,769,191,613.31
  5. Step 5: Solve for x
    x = 250,717,769,191,613.31/13,348,875.88
  6. Step 6: Final answer
    x = 18,781,938.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.