Home / 13,223,998.76-18,249,387.78-7,423,198.76

Finding the Fourth Proportional to 13,223,998.76, 18,249,387.78 and 7,423,198.76

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Solution

The fourth proportional to 13,223,998.76, 18,249,387.78 and 7,423,198.76 is: 10,244,165.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223,998.76 : 18,249,387.78 = 7,423,198.76 : x
  2. Step 2: Convert to fraction form
    13,223,998.76/18,249,387.78 = 7,423,198.76/x
  3. Step 3: Cross multiply
    13,223,998.76x = 18,249,387.78 × 7,423,198.76
  4. Step 4: Simplify right side
    13,223,998.76x = 135,468,832,739,255.16
  5. Step 5: Solve for x
    x = 135,468,832,739,255.16/13,223,998.76
  6. Step 6: Final answer
    x = 10,244,165.57

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.