Home / 6,690,988.80-10,044,356.40-6,643,749.60

Finding the Fourth Proportional to 6,690,988.80, 10,044,356.40 and 6,643,749.60

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Solution

The fourth proportional to 6,690,988.80, 10,044,356.40 and 6,643,749.60 is: 9,973,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690,988.80 : 10,044,356.40 = 6,643,749.60 : x
  2. Step 2: Convert to fraction form
    6,690,988.80/10,044,356.40 = 6,643,749.60/x
  3. Step 3: Cross multiply
    6,690,988.80x = 10,044,356.40 × 6,643,749.60
  4. Step 4: Simplify right side
    6,690,988.80x = 66,732,188,814,757.44
  5. Step 5: Solve for x
    x = 66,732,188,814,757.44/6,690,988.80
  6. Step 6: Final answer
    x = 9,973,442.01

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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.