Home / 15,056,657.28-20,778,376.20-8,181,254.16

Finding the Fourth Proportional to 15,056,657.28, 20,778,376.20 and 8,181,254.16

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Solution

The fourth proportional to 15,056,657.28, 20,778,376.20 and 8,181,254.16 is: 11,290,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056,657.28 : 20,778,376.20 = 8,181,254.16 : x
  2. Step 2: Convert to fraction form
    15,056,657.28/20,778,376.20 = 8,181,254.16/x
  3. Step 3: Cross multiply
    15,056,657.28x = 20,778,376.20 × 8,181,254.16
  4. Step 4: Simplify right side
    15,056,657.28x = 169,993,176,724,295
  5. Step 5: Solve for x
    x = 169,993,176,724,295/15,056,657.28
  6. Step 6: Final answer
    x = 11,290,233.52

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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.