Home / 15,057,275.04-20,778,994.32-8,181,778.08

Finding the Fourth Proportional to 15,057,275.04, 20,778,994.32 and 8,181,778.08

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Solution

The fourth proportional to 15,057,275.04, 20,778,994.32 and 8,181,778.08 is: 11,290,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,275.04 : 20,778,994.32 = 8,181,778.08 : x
  2. Step 2: Convert to fraction form
    15,057,275.04/20,778,994.32 = 8,181,778.08/x
  3. Step 3: Cross multiply
    15,057,275.04x = 20,778,994.32 × 8,181,778.08
  4. Step 4: Simplify right side
    15,057,275.04x = 170,009,120,251,820.50
  5. Step 5: Solve for x
    x = 170,009,120,251,820.50/15,057,275.04
  6. Step 6: Final answer
    x = 11,290,829.17

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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.