Home / 78,765,207.60-118,091,824.20-30,224,305.20

Finding the Fourth Proportional to 78,765,207.60, 118,091,824.20 and 30,224,305.20

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Solution

The fourth proportional to 78,765,207.60, 118,091,824.20 and 30,224,305.20 is: 45,314,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,765,207.60 : 118,091,824.20 = 30,224,305.20 : x
  2. Step 2: Convert to fraction form
    78,765,207.60/118,091,824.20 = 30,224,305.20/x
  3. Step 3: Cross multiply
    78,765,207.60x = 118,091,824.20 × 30,224,305.20
  4. Step 4: Simplify right side
    78,765,207.60x = 3,569,243,336,245,546
  5. Step 5: Solve for x
    x = 3,569,243,336,245,546/78,765,207.60
  6. Step 6: Final answer
    x = 45,314,974.02

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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.