Home / 13,903,411.60-20,855,117.40-8,220,710.80

Finding the Fourth Proportional to 13,903,411.60, 20,855,117.40 and 8,220,710.80

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Solution

The fourth proportional to 13,903,411.60, 20,855,117.40 and 8,220,710.80 is: 12,331,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903,411.60 : 20,855,117.40 = 8,220,710.80 : x
  2. Step 2: Convert to fraction form
    13,903,411.60/20,855,117.40 = 8,220,710.80/x
  3. Step 3: Cross multiply
    13,903,411.60x = 20,855,117.40 × 8,220,710.80
  4. Step 4: Simplify right side
    13,903,411.60x = 171,443,888,845,447.91
  5. Step 5: Solve for x
    x = 171,443,888,845,447.91/13,903,411.60
  6. Step 6: Final answer
    x = 12,331,066.20

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Similar ratio
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1.5x scale

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.