Home / 78,984,114.90-118,476,172.35-66,229,530.90

Finding the Fourth Proportional to 78,984,114.90, 118,476,172.35 and 66,229,530.90

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Solution

The fourth proportional to 78,984,114.90, 118,476,172.35 and 66,229,530.90 is: 99,344,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,984,114.90 : 118,476,172.35 = 66,229,530.90 : x
  2. Step 2: Convert to fraction form
    78,984,114.90/118,476,172.35 = 66,229,530.90/x
  3. Step 3: Cross multiply
    78,984,114.90x = 118,476,172.35 × 66,229,530.90
  4. Step 4: Simplify right side
    78,984,114.90x = 7,846,621,317,568,050
  5. Step 5: Solve for x
    x = 7,846,621,317,568,050/78,984,114.90
  6. Step 6: Final answer
    x = 99,344,296.35

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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.