Home / 456,819,907.72-630,412,272.42-247,976,192.20

Finding the Fourth Proportional to 456,819,907.72, 630,412,272.42 and 247,976,192.20

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Solution

The fourth proportional to 456,819,907.72, 630,412,272.42 and 247,976,192.20 is: 342,207,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,819,907.72 : 630,412,272.42 = 247,976,192.20 : x
  2. Step 2: Convert to fraction form
    456,819,907.72/630,412,272.42 = 247,976,192.20/x
  3. Step 3: Cross multiply
    456,819,907.72x = 630,412,272.42 × 247,976,192.20
  4. Step 4: Simplify right side
    456,819,907.72x = 156,327,234,830,860,672
  5. Step 5: Solve for x
    x = 156,327,234,830,860,672/456,819,907.72
  6. Step 6: Final answer
    x = 342,207,579.37

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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.