Home / 153,647,752.86-212,039,418.06-87,578,220.42

Finding the Fourth Proportional to 153,647,752.86, 212,039,418.06 and 87,578,220.42

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Solution

The fourth proportional to 153,647,752.86, 212,039,418.06 and 87,578,220.42 is: 120,861,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,647,752.86 : 212,039,418.06 = 87,578,220.42 : x
  2. Step 2: Convert to fraction form
    153,647,752.86/212,039,418.06 = 87,578,220.42/x
  3. Step 3: Cross multiply
    153,647,752.86x = 212,039,418.06 × 87,578,220.42
  4. Step 4: Simplify right side
    153,647,752.86x = 18,570,034,892,587,208
  5. Step 5: Solve for x
    x = 18,570,034,892,587,208/153,647,752.86
  6. Step 6: Final answer
    x = 120,861,090.04

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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.