Home / 15,376,074.76-21,219,426.03-8,500,999.69

Finding the Fourth Proportional to 15,376,074.76, 21,219,426.03 and 8,500,999.69

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Solution

The fourth proportional to 15,376,074.76, 21,219,426.03 and 8,500,999.69 is: 11,731,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376,074.76 : 21,219,426.03 = 8,500,999.69 : x
  2. Step 2: Convert to fraction form
    15,376,074.76/21,219,426.03 = 8,500,999.69/x
  3. Step 3: Cross multiply
    15,376,074.76x = 21,219,426.03 × 8,500,999.69
  4. Step 4: Simplify right side
    15,376,074.76x = 180,386,334,103,007.94
  5. Step 5: Solve for x
    x = 180,386,334,103,007.94/15,376,074.76
  6. Step 6: Final answer
    x = 11,731,624.42

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Double scale
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Similar ratio
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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.