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Finding the Fourth Proportional to 60,660,010.80, 90,990,016.20 and 17,530,621.20

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Solution

The fourth proportional to 60,660,010.80, 90,990,016.20 and 17,530,621.20 is: 26,295,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,660,010.80 : 90,990,016.20 = 17,530,621.20 : x
  2. Step 2: Convert to fraction form
    60,660,010.80/90,990,016.20 = 17,530,621.20/x
  3. Step 3: Cross multiply
    60,660,010.80x = 90,990,016.20 × 17,530,621.20
  4. Step 4: Simplify right side
    60,660,010.80x = 1,595,111,506,984,063.50
  5. Step 5: Solve for x
    x = 1,595,111,506,984,063.50/60,660,010.80
  6. Step 6: Final answer
    x = 26,295,931.80

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1.5x scale

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.