Home / 60,920,385.16-91,380,888.78-20,531,219.08

Finding the Fourth Proportional to 60,920,385.16, 91,380,888.78 and 20,531,219.08

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Solution

The fourth proportional to 60,920,385.16, 91,380,888.78 and 20,531,219.08 is: 30,796,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,920,385.16 : 91,380,888.78 = 20,531,219.08 : x
  2. Step 2: Convert to fraction form
    60,920,385.16/91,380,888.78 = 20,531,219.08/x
  3. Step 3: Cross multiply
    60,920,385.16x = 91,380,888.78 × 20,531,219.08
  4. Step 4: Simplify right side
    60,920,385.16x = 1,876,161,047,267,293.75
  5. Step 5: Solve for x
    x = 1,876,161,047,267,293.75/60,920,385.16
  6. Step 6: Final answer
    x = 30,796,933.45

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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.