Home / 21,291,091.20-31,941,302.40-10,513,555.20

Finding the Fourth Proportional to 21,291,091.20, 31,941,302.40 and 10,513,555.20

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Solution

The fourth proportional to 21,291,091.20, 31,941,302.40 and 10,513,555.20 is: 15,772,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,091.20 : 31,941,302.40 = 10,513,555.20 : x
  2. Step 2: Convert to fraction form
    21,291,091.20/31,941,302.40 = 10,513,555.20/x
  3. Step 3: Cross multiply
    21,291,091.20x = 31,941,302.40 × 10,513,555.20
  4. Step 4: Simplify right side
    21,291,091.20x = 335,816,645,942,292.44
  5. Step 5: Solve for x
    x = 335,816,645,942,292.44/21,291,091.20
  6. Step 6: Final answer
    x = 15,772,636.68

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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.