Home / 264,958,291-397,480,608.18-78,231,109.20

Finding the Fourth Proportional to 264,958,291, 397,480,608.18 and 78,231,109.20

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Solution

The fourth proportional to 264,958,291, 397,480,608.18 and 78,231,109.20 is: 117,359,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,958,291 : 397,480,608.18 = 78,231,109.20 : x
  2. Step 2: Convert to fraction form
    264,958,291/397,480,608.18 = 78,231,109.20/x
  3. Step 3: Cross multiply
    264,958,291x = 397,480,608.18 × 78,231,109.20
  4. Step 4: Simplify right side
    264,958,291x = 31,095,348,863,411,996
  5. Step 5: Solve for x
    x = 31,095,348,863,411,996/264,958,291
  6. Step 6: Final answer
    x = 117,359,410.59

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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.