Home / 10,109,929.80-15,164,894.70-9,102,160.20

Finding the Fourth Proportional to 10,109,929.80, 15,164,894.70 and 9,102,160.20

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Solution

The fourth proportional to 10,109,929.80, 15,164,894.70 and 9,102,160.20 is: 13,653,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,929.80 : 15,164,894.70 = 9,102,160.20 : x
  2. Step 2: Convert to fraction form
    10,109,929.80/15,164,894.70 = 9,102,160.20/x
  3. Step 3: Cross multiply
    10,109,929.80x = 15,164,894.70 × 9,102,160.20
  4. Step 4: Simplify right side
    10,109,929.80x = 138,033,300,975,530.92
  5. Step 5: Solve for x
    x = 138,033,300,975,530.92/10,109,929.80
  6. Step 6: Final answer
    x = 13,653,240.30

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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.