Home / 90,825,841.90-136,238,762.85-74,683,321.53

Finding the Fourth Proportional to 90,825,841.90, 136,238,762.85 and 74,683,321.53

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Solution

The fourth proportional to 90,825,841.90, 136,238,762.85 and 74,683,321.53 is: 112,024,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,841.90 : 136,238,762.85 = 74,683,321.53 : x
  2. Step 2: Convert to fraction form
    90,825,841.90/136,238,762.85 = 74,683,321.53/x
  3. Step 3: Cross multiply
    90,825,841.90x = 136,238,762.85 × 74,683,321.53
  4. Step 4: Simplify right side
    90,825,841.90x = 10,174,763,330,775,968
  5. Step 5: Solve for x
    x = 10,174,763,330,775,968/90,825,841.90
  6. Step 6: Final answer
    x = 112,024,982.30

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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.