Home / 15,196,985.16-20,971,844.04-8,227,661.34

Finding the Fourth Proportional to 15,196,985.16, 20,971,844.04 and 8,227,661.34

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Solution

The fourth proportional to 15,196,985.16, 20,971,844.04 and 8,227,661.34 is: 11,354,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,985.16 : 20,971,844.04 = 8,227,661.34 : x
  2. Step 2: Convert to fraction form
    15,196,985.16/20,971,844.04 = 8,227,661.34/x
  3. Step 3: Cross multiply
    15,196,985.16x = 20,971,844.04 × 8,227,661.34
  4. Step 4: Simplify right side
    15,196,985.16x = 172,549,230,436,417.41
  5. Step 5: Solve for x
    x = 172,549,230,436,417.41/15,196,985.16
  6. Step 6: Final answer
    x = 11,354,175.10

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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.