Home / 78,588,410.10-117,882,615.15-35,478,266.10

Finding the Fourth Proportional to 78,588,410.10, 117,882,615.15 and 35,478,266.10

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Solution

The fourth proportional to 78,588,410.10, 117,882,615.15 and 35,478,266.10 is: 53,217,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588,410.10 : 117,882,615.15 = 35,478,266.10 : x
  2. Step 2: Convert to fraction form
    78,588,410.10/117,882,615.15 = 35,478,266.10/x
  3. Step 3: Cross multiply
    78,588,410.10x = 117,882,615.15 × 35,478,266.10
  4. Step 4: Simplify right side
    78,588,410.10x = 4,182,270,788,855,592
  5. Step 5: Solve for x
    x = 4,182,270,788,855,592/78,588,410.10
  6. Step 6: Final answer
    x = 53,217,399.15

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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.