Home / 13,500,279.43-18,630,435-7,305,326.20

Finding the Fourth Proportional to 13,500,279.43, 18,630,435 and 7,305,326.20

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Solution

The fourth proportional to 13,500,279.43, 18,630,435 and 7,305,326.20 is: 10,081,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500,279.43 : 18,630,435 = 7,305,326.20 : x
  2. Step 2: Convert to fraction form
    13,500,279.43/18,630,435 = 7,305,326.20/x
  3. Step 3: Cross multiply
    13,500,279.43x = 18,630,435 × 7,305,326.20
  4. Step 4: Simplify right side
    13,500,279.43x = 136,101,404,922,897
  5. Step 5: Solve for x
    x = 136,101,404,922,897/13,500,279.43
  6. Step 6: Final answer
    x = 10,081,376.88

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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.