Home / 12,128,200.20-18,192,300.30-9,975,864.15

Finding the Fourth Proportional to 12,128,200.20, 18,192,300.30 and 9,975,864.15

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Solution

The fourth proportional to 12,128,200.20, 18,192,300.30 and 9,975,864.15 is: 14,963,796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,200.20 : 18,192,300.30 = 9,975,864.15 : x
  2. Step 2: Convert to fraction form
    12,128,200.20/18,192,300.30 = 9,975,864.15/x
  3. Step 3: Cross multiply
    12,128,200.20x = 18,192,300.30 × 9,975,864.15
  4. Step 4: Simplify right side
    12,128,200.20x = 181,483,916,368,804.25
  5. Step 5: Solve for x
    x = 181,483,916,368,804.25/12,128,200.20
  6. Step 6: Final answer
    x = 14,963,796.23

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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.