Home / 78,984,080.40-118,476,120.60-66,229,496.40

Finding the Fourth Proportional to 78,984,080.40, 118,476,120.60 and 66,229,496.40

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Solution

The fourth proportional to 78,984,080.40, 118,476,120.60 and 66,229,496.40 is: 99,344,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,984,080.40 : 118,476,120.60 = 66,229,496.40 : x
  2. Step 2: Convert to fraction form
    78,984,080.40/118,476,120.60 = 66,229,496.40/x
  3. Step 3: Cross multiply
    78,984,080.40x = 118,476,120.60 × 66,229,496.40
  4. Step 4: Simplify right side
    78,984,080.40x = 7,846,613,802,763,665
  5. Step 5: Solve for x
    x = 7,846,613,802,763,665/78,984,080.40
  6. Step 6: Final answer
    x = 99,344,244.60

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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.