Home / 78,588,410.60-117,882,615.90-35,478,266.60

Finding the Fourth Proportional to 78,588,410.60, 117,882,615.90 and 35,478,266.60

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Solution

The fourth proportional to 78,588,410.60, 117,882,615.90 and 35,478,266.60 is: 53,217,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588,410.60 : 117,882,615.90 = 35,478,266.60 : x
  2. Step 2: Convert to fraction form
    78,588,410.60/117,882,615.90 = 35,478,266.60/x
  3. Step 3: Cross multiply
    78,588,410.60x = 117,882,615.90 × 35,478,266.60
  4. Step 4: Simplify right side
    78,588,410.60x = 4,182,270,874,405,599.50
  5. Step 5: Solve for x
    x = 4,182,270,874,405,599.50/78,588,410.60
  6. Step 6: Final answer
    x = 53,217,399.90

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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.