Home / 13,147,279.40-18,143,207.25-7,346,065.70

Finding the Fourth Proportional to 13,147,279.40, 18,143,207.25 and 7,346,065.70

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Solution

The fourth proportional to 13,147,279.40, 18,143,207.25 and 7,346,065.70 is: 10,137,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,279.40 : 18,143,207.25 = 7,346,065.70 : x
  2. Step 2: Convert to fraction form
    13,147,279.40/18,143,207.25 = 7,346,065.70/x
  3. Step 3: Cross multiply
    13,147,279.40x = 18,143,207.25 × 7,346,065.70
  4. Step 4: Simplify right side
    13,147,279.40x = 133,281,192,467,216.33
  5. Step 5: Solve for x
    x = 133,281,192,467,216.33/13,147,279.40
  6. Step 6: Final answer
    x = 10,137,549.25

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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.