Home / 20,129,295.80-30,193,943.70-12,476,545.40

Finding the Fourth Proportional to 20,129,295.80, 30,193,943.70 and 12,476,545.40

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Solution

The fourth proportional to 20,129,295.80, 30,193,943.70 and 12,476,545.40 is: 18,714,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,295.80 : 30,193,943.70 = 12,476,545.40 : x
  2. Step 2: Convert to fraction form
    20,129,295.80/30,193,943.70 = 12,476,545.40/x
  3. Step 3: Cross multiply
    20,129,295.80x = 30,193,943.70 × 12,476,545.40
  4. Step 4: Simplify right side
    20,129,295.80x = 376,716,109,378,094
  5. Step 5: Solve for x
    x = 376,716,109,378,094/20,129,295.80
  6. Step 6: Final answer
    x = 18,714,818.10

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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.