Home / 20,128,492.80-30,192,739.20-13,963,777.20

Finding the Fourth Proportional to 20,128,492.80, 30,192,739.20 and 13,963,777.20

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Solution

The fourth proportional to 20,128,492.80, 30,192,739.20 and 13,963,777.20 is: 20,945,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,492.80 : 30,192,739.20 = 13,963,777.20 : x
  2. Step 2: Convert to fraction form
    20,128,492.80/30,192,739.20 = 13,963,777.20/x
  3. Step 3: Cross multiply
    20,128,492.80x = 30,192,739.20 × 13,963,777.20
  4. Step 4: Simplify right side
    20,128,492.80x = 421,604,683,246,506.19
  5. Step 5: Solve for x
    x = 421,604,683,246,506.19/20,128,492.80
  6. Step 6: Final answer
    x = 20,945,665.80

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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.