Home / 40,128,122.40-60,192,183.60-13,202,656.80

Finding the Fourth Proportional to 40,128,122.40, 60,192,183.60 and 13,202,656.80

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Solution

The fourth proportional to 40,128,122.40, 60,192,183.60 and 13,202,656.80 is: 19,803,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128,122.40 : 60,192,183.60 = 13,202,656.80 : x
  2. Step 2: Convert to fraction form
    40,128,122.40/60,192,183.60 = 13,202,656.80/x
  3. Step 3: Cross multiply
    40,128,122.40x = 60,192,183.60 × 13,202,656.80
  4. Step 4: Simplify right side
    40,128,122.40x = 794,696,742,113,388.50
  5. Step 5: Solve for x
    x = 794,696,742,113,388.50/40,128,122.40
  6. Step 6: Final answer
    x = 19,803,985.20

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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.