Home / 15,401,681.10-21,247,648.11-9,286,712.46

Finding the Fourth Proportional to 15,401,681.10, 21,247,648.11 and 9,286,712.46

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Solution

The fourth proportional to 15,401,681.10, 21,247,648.11 and 9,286,712.46 is: 12,811,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,681.10 : 21,247,648.11 = 9,286,712.46 : x
  2. Step 2: Convert to fraction form
    15,401,681.10/21,247,648.11 = 9,286,712.46/x
  3. Step 3: Cross multiply
    15,401,681.10x = 21,247,648.11 × 9,286,712.46
  4. Step 4: Simplify right side
    15,401,681.10x = 197,320,798,448,832.47
  5. Step 5: Solve for x
    x = 197,320,798,448,832.47/15,401,681.10
  6. Step 6: Final answer
    x = 12,811,640.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.