Home / 15,261,328.68-21,060,628.69-8,386,253.61

Finding the Fourth Proportional to 15,261,328.68, 21,060,628.69 and 8,386,253.61

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Solution

The fourth proportional to 15,261,328.68, 21,060,628.69 and 8,386,253.61 is: 11,573,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261,328.68 : 21,060,628.69 = 8,386,253.61 : x
  2. Step 2: Convert to fraction form
    15,261,328.68/21,060,628.69 = 8,386,253.61/x
  3. Step 3: Cross multiply
    15,261,328.68x = 21,060,628.69 × 8,386,253.61
  4. Step 4: Simplify right side
    15,261,328.68x = 176,619,773,380,382.09
  5. Step 5: Solve for x
    x = 176,619,773,380,382.09/15,261,328.68
  6. Step 6: Final answer
    x = 11,573,027.30

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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.