Home / 15,376,074.82-21,219,426.12-8,500,999.75

Finding the Fourth Proportional to 15,376,074.82, 21,219,426.12 and 8,500,999.75

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Solution

The fourth proportional to 15,376,074.82, 21,219,426.12 and 8,500,999.75 is: 11,731,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376,074.82 : 21,219,426.12 = 8,500,999.75 : x
  2. Step 2: Convert to fraction form
    15,376,074.82/21,219,426.12 = 8,500,999.75/x
  3. Step 3: Cross multiply
    15,376,074.82x = 21,219,426.12 × 8,500,999.75
  4. Step 4: Simplify right side
    15,376,074.82x = 180,386,336,141,263.47
  5. Step 5: Solve for x
    x = 180,386,336,141,263.47/15,376,074.82
  6. Step 6: Final answer
    x = 11,731,624.50

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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.