Home / 20,352,140.70-30,528,211.05-20,210,423.10

Finding the Fourth Proportional to 20,352,140.70, 30,528,211.05 and 20,210,423.10

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Solution

The fourth proportional to 20,352,140.70, 30,528,211.05 and 20,210,423.10 is: 30,315,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352,140.70 : 30,528,211.05 = 20,210,423.10 : x
  2. Step 2: Convert to fraction form
    20,352,140.70/30,528,211.05 = 20,210,423.10/x
  3. Step 3: Cross multiply
    20,352,140.70x = 30,528,211.05 × 20,210,423.10
  4. Step 4: Simplify right side
    20,352,140.70x = 616,988,061,806,595.38
  5. Step 5: Solve for x
    x = 616,988,061,806,595.38/20,352,140.70
  6. Step 6: Final answer
    x = 30,315,634.65

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Double scale
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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.