Home / 372,121,412.32-513,511,817.53-202,572,124.89

Finding the Fourth Proportional to 372,121,412.32, 513,511,817.53 and 202,572,124.89

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Solution

The fourth proportional to 372,121,412.32, 513,511,817.53 and 202,572,124.89 is: 279,540,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,121,412.32 : 513,511,817.53 = 202,572,124.89 : x
  2. Step 2: Convert to fraction form
    372,121,412.32/513,511,817.53 = 202,572,124.89/x
  3. Step 3: Cross multiply
    372,121,412.32x = 513,511,817.53 × 202,572,124.89
  4. Step 4: Simplify right side
    372,121,412.32x = 104,023,180,033,178,032
  5. Step 5: Solve for x
    x = 104,023,180,033,178,032/372,121,412.32
  6. Step 6: Final answer
    x = 279,540,968.59

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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.