Home / 20,180,633.70-30,270,950.55-19,117,751.70

Finding the Fourth Proportional to 20,180,633.70, 30,270,950.55 and 19,117,751.70

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Solution

The fourth proportional to 20,180,633.70, 30,270,950.55 and 19,117,751.70 is: 28,676,627.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180,633.70 : 30,270,950.55 = 19,117,751.70 : x
  2. Step 2: Convert to fraction form
    20,180,633.70/30,270,950.55 = 19,117,751.70/x
  3. Step 3: Cross multiply
    20,180,633.70x = 30,270,950.55 × 19,117,751.70
  4. Step 4: Simplify right side
    20,180,633.70x = 578,712,516,337,878.38
  5. Step 5: Solve for x
    x = 578,712,516,337,878.38/20,180,633.70
  6. Step 6: Final answer
    x = 28,676,627.55

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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.