Home / 20,386,452.43-30,543,806.31-19,172,774.35

Finding the Fourth Proportional to 20,386,452.43, 30,543,806.31 and 19,172,774.35

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Solution

The fourth proportional to 20,386,452.43, 30,543,806.31 and 19,172,774.35 is: 28,725,424.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,452.43 : 30,543,806.31 = 19,172,774.35 : x
  2. Step 2: Convert to fraction form
    20,386,452.43/30,543,806.31 = 19,172,774.35/x
  3. Step 3: Cross multiply
    20,386,452.43x = 30,543,806.31 × 19,172,774.35
  4. Step 4: Simplify right side
    20,386,452.43x = 585,609,506,171,736.12
  5. Step 5: Solve for x
    x = 585,609,506,171,736.12/20,386,452.43
  6. Step 6: Final answer
    x = 28,725,424.80

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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.