Home / 13,348,876.88-20,123,367.84-12,459,038.18

Finding the Fourth Proportional to 13,348,876.88, 20,123,367.84 and 12,459,038.18

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Solution

The fourth proportional to 13,348,876.88, 20,123,367.84 and 12,459,038.18 is: 18,781,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,876.88 : 20,123,367.84 = 12,459,038.18 : x
  2. Step 2: Convert to fraction form
    13,348,876.88/20,123,367.84 = 12,459,038.18/x
  3. Step 3: Cross multiply
    13,348,876.88x = 20,123,367.84 × 12,459,038.18
  4. Step 4: Simplify right side
    13,348,876.88x = 250,717,808,228,744.12
  5. Step 5: Solve for x
    x = 250,717,808,228,744.12/13,348,876.88
  6. Step 6: Final answer
    x = 18,781,940.27

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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.