Home / 7,128,001.20-10,692,411.40-2,080,090.80

Finding the Fourth Proportional to 7,128,001.20, 10,692,411.40 and 2,080,090.80

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Solution

The fourth proportional to 7,128,001.20, 10,692,411.40 and 2,080,090.80 is: 3,120,255.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,001.20 : 10,692,411.40 = 2,080,090.80 : x
  2. Step 2: Convert to fraction form
    7,128,001.20/10,692,411.40 = 2,080,090.80/x
  3. Step 3: Cross multiply
    7,128,001.20x = 10,692,411.40 × 2,080,090.80
  4. Step 4: Simplify right side
    7,128,001.20x = 22,241,186,582,955.12
  5. Step 5: Solve for x
    x = 22,241,186,582,955.12/7,128,001.20
  6. Step 6: Final answer
    x = 3,120,255.73

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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.