Home / 71,291,172.18-98,379,272.10-40,350,677.16

Finding the Fourth Proportional to 71,291,172.18, 98,379,272.10 and 40,350,677.16

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Solution

The fourth proportional to 71,291,172.18, 98,379,272.10 and 40,350,677.16 is: 55,682,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,291,172.18 : 98,379,272.10 = 40,350,677.16 : x
  2. Step 2: Convert to fraction form
    71,291,172.18/98,379,272.10 = 40,350,677.16/x
  3. Step 3: Cross multiply
    71,291,172.18x = 98,379,272.10 × 40,350,677.16
  4. Step 4: Simplify right side
    71,291,172.18x = 3,969,670,247,742,894.50
  5. Step 5: Solve for x
    x = 3,969,670,247,742,894.50/71,291,172.18
  6. Step 6: Final answer
    x = 55,682,493.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.