Home / 20,160,052.70-30,240,079.05-18,406,297.40

Finding the Fourth Proportional to 20,160,052.70, 30,240,079.05 and 18,406,297.40

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Solution

The fourth proportional to 20,160,052.70, 30,240,079.05 and 18,406,297.40 is: 27,609,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,052.70 : 30,240,079.05 = 18,406,297.40 : x
  2. Step 2: Convert to fraction form
    20,160,052.70/30,240,079.05 = 18,406,297.40/x
  3. Step 3: Cross multiply
    20,160,052.70x = 30,240,079.05 × 18,406,297.40
  4. Step 4: Simplify right side
    20,160,052.70x = 556,607,888,393,809.44
  5. Step 5: Solve for x
    x = 556,607,888,393,809.44/20,160,052.70
  6. Step 6: Final answer
    x = 27,609,446.10

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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.