Home / 172,440,506.32-258,658,323.16-80,272,693.72

Finding the Fourth Proportional to 172,440,506.32, 258,658,323.16 and 80,272,693.72

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Solution

The fourth proportional to 172,440,506.32, 258,658,323.16 and 80,272,693.72 is: 120,407,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,440,506.32 : 258,658,323.16 = 80,272,693.72 : x
  2. Step 2: Convert to fraction form
    172,440,506.32/258,658,323.16 = 80,272,693.72/x
  3. Step 3: Cross multiply
    172,440,506.32x = 258,658,323.16 × 80,272,693.72
  4. Step 4: Simplify right side
    172,440,506.32x = 20,763,200,353,151,460
  5. Step 5: Solve for x
    x = 20,763,200,353,151,460/172,440,506.32
  6. Step 6: Final answer
    x = 120,407,906.45

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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.