Home / 18,683,139.60-28,024,709.40-10,620,982.80

Finding the Fourth Proportional to 18,683,139.60, 28,024,709.40 and 10,620,982.80

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Solution

The fourth proportional to 18,683,139.60, 28,024,709.40 and 10,620,982.80 is: 15,931,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,139.60 : 28,024,709.40 = 10,620,982.80 : x
  2. Step 2: Convert to fraction form
    18,683,139.60/28,024,709.40 = 10,620,982.80/x
  3. Step 3: Cross multiply
    18,683,139.60x = 28,024,709.40 × 10,620,982.80
  4. Step 4: Simplify right side
    18,683,139.60x = 297,649,956,512,398.31
  5. Step 5: Solve for x
    x = 297,649,956,512,398.31/18,683,139.60
  6. Step 6: Final answer
    x = 15,931,474.20

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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.