Home / 78,360,070.03-117,542,758.10-20,852,396.53

Finding the Fourth Proportional to 78,360,070.03, 117,542,758.10 and 20,852,396.53

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Solution

The fourth proportional to 78,360,070.03, 117,542,758.10 and 20,852,396.53 is: 31,279,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,360,070.03 : 117,542,758.10 = 20,852,396.53 : x
  2. Step 2: Convert to fraction form
    78,360,070.03/117,542,758.10 = 20,852,396.53/x
  3. Step 3: Cross multiply
    78,360,070.03x = 117,542,758.10 × 20,852,396.53
  4. Step 4: Simplify right side
    78,360,070.03x = 2,451,048,201,026,807.50
  5. Step 5: Solve for x
    x = 2,451,048,201,026,807.50/78,360,070.03
  6. Step 6: Final answer
    x = 31,279,300.80

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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.