Home / 11,387,680.80-17,060,785.20-5,390,829.60

Finding the Fourth Proportional to 11,387,680.80, 17,060,785.20 and 5,390,829.60

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Solution

The fourth proportional to 11,387,680.80, 17,060,785.20 and 5,390,829.60 is: 8,076,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387,680.80 : 17,060,785.20 = 5,390,829.60 : x
  2. Step 2: Convert to fraction form
    11,387,680.80/17,060,785.20 = 5,390,829.60/x
  3. Step 3: Cross multiply
    11,387,680.80x = 17,060,785.20 × 5,390,829.60
  4. Step 4: Simplify right side
    11,387,680.80x = 91,971,785,855,401.91
  5. Step 5: Solve for x
    x = 91,971,785,855,401.91/11,387,680.80
  6. Step 6: Final answer
    x = 8,076,428.16

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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.