Home / 20,386,451.43-30,543,804.81-19,172,773.35

Finding the Fourth Proportional to 20,386,451.43, 30,543,804.81 and 19,172,773.35

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Solution

The fourth proportional to 20,386,451.43, 30,543,804.81 and 19,172,773.35 is: 28,725,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,451.43 : 30,543,804.81 = 19,172,773.35 : x
  2. Step 2: Convert to fraction form
    20,386,451.43/30,543,804.81 = 19,172,773.35/x
  3. Step 3: Cross multiply
    20,386,451.43x = 30,543,804.81 × 19,172,773.35
  4. Step 4: Simplify right side
    20,386,451.43x = 585,609,446,868,769.88
  5. Step 5: Solve for x
    x = 585,609,446,868,769.88/20,386,451.43
  6. Step 6: Final answer
    x = 28,725,423.30

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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.