Home / 129,892,236.54-179,183,327.48-80,316,762.86

Finding the Fourth Proportional to 129,892,236.54, 179,183,327.48 and 80,316,762.86

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Solution

The fourth proportional to 129,892,236.54, 179,183,327.48 and 80,316,762.86 is: 110,795,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,892,236.54 : 179,183,327.48 = 80,316,762.86 : x
  2. Step 2: Convert to fraction form
    129,892,236.54/179,183,327.48 = 80,316,762.86/x
  3. Step 3: Cross multiply
    129,892,236.54x = 179,183,327.48 × 80,316,762.86
  4. Step 4: Simplify right side
    129,892,236.54x = 14,391,424,820,780,964
  5. Step 5: Solve for x
    x = 14,391,424,820,780,964/129,892,236.54
  6. Step 6: Final answer
    x = 110,795,111.43

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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.