Home / 178,907,377.28-268,316,742.72-76,659,820.16

Finding the Fourth Proportional to 178,907,377.28, 268,316,742.72 and 76,659,820.16

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Solution

The fourth proportional to 178,907,377.28, 268,316,742.72 and 76,659,820.16 is: 114,970,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,907,377.28 : 268,316,742.72 = 76,659,820.16 : x
  2. Step 2: Convert to fraction form
    178,907,377.28/268,316,742.72 = 76,659,820.16/x
  3. Step 3: Cross multiply
    178,907,377.28x = 268,316,742.72 × 76,659,820.16
  4. Step 4: Simplify right side
    178,907,377.28x = 20,569,113,242,832,188
  5. Step 5: Solve for x
    x = 20,569,113,242,832,188/178,907,377.28
  6. Step 6: Final answer
    x = 114,970,738.24

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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.