Home / 12,878,887.41-19,327,188.48-5,305,853.16

Finding the Fourth Proportional to 12,878,887.41, 19,327,188.48 and 5,305,853.16

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Solution

The fourth proportional to 12,878,887.41, 19,327,188.48 and 5,305,853.16 is: 7,962,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,887.41 : 19,327,188.48 = 5,305,853.16 : x
  2. Step 2: Convert to fraction form
    12,878,887.41/19,327,188.48 = 5,305,853.16/x
  3. Step 3: Cross multiply
    12,878,887.41x = 19,327,188.48 × 5,305,853.16
  4. Step 4: Simplify right side
    12,878,887.41x = 102,547,224,070,523.61
  5. Step 5: Solve for x
    x = 102,547,224,070,523.61/12,878,887.41
  6. Step 6: Final answer
    x = 7,962,428.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.