Home / 7,035,982.40-10,552,936.80-1,987,803.20

Finding the Fourth Proportional to 7,035,982.40, 10,552,936.80 and 1,987,803.20

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Solution

The fourth proportional to 7,035,982.40, 10,552,936.80 and 1,987,803.20 is: 2,981,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035,982.40 : 10,552,936.80 = 1,987,803.20 : x
  2. Step 2: Convert to fraction form
    7,035,982.40/10,552,936.80 = 1,987,803.20/x
  3. Step 3: Cross multiply
    7,035,982.40x = 10,552,936.80 × 1,987,803.20
  4. Step 4: Simplify right side
    7,035,982.40x = 20,977,161,540,437.76
  5. Step 5: Solve for x
    x = 20,977,161,540,437.76/7,035,982.40
  6. Step 6: Final answer
    x = 2,981,411.88

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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.