Home / 10,109,920.80-15,164,881.20-2,921,689.20

Finding the Fourth Proportional to 10,109,920.80, 15,164,881.20 and 2,921,689.20

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Solution

The fourth proportional to 10,109,920.80, 15,164,881.20 and 2,921,689.20 is: 4,382,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,920.80 : 15,164,881.20 = 2,921,689.20 : x
  2. Step 2: Convert to fraction form
    10,109,920.80/15,164,881.20 = 2,921,689.20/x
  3. Step 3: Cross multiply
    10,109,920.80x = 15,164,881.20 × 2,921,689.20
  4. Step 4: Simplify right side
    10,109,920.80x = 44,307,069,621,323.04
  5. Step 5: Solve for x
    x = 44,307,069,621,323.04/10,109,920.80
  6. Step 6: Final answer
    x = 4,382,533.80

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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.