Home / 15,057,371.78-20,779,297.61-8,181,853.84

Finding the Fourth Proportional to 15,057,371.78, 20,779,297.61 and 8,181,853.84

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Solution

The fourth proportional to 15,057,371.78, 20,779,297.61 and 8,181,853.84 is: 11,291,025.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,371.78 : 20,779,297.61 = 8,181,853.84 : x
  2. Step 2: Convert to fraction form
    15,057,371.78/20,779,297.61 = 8,181,853.84/x
  3. Step 3: Cross multiply
    15,057,371.78x = 20,779,297.61 × 8,181,853.84
  4. Step 4: Simplify right side
    15,057,371.78x = 170,013,175,927,946.16
  5. Step 5: Solve for x
    x = 170,013,175,927,946.16/15,057,371.78
  6. Step 6: Final answer
    x = 11,291,025.98

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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.