Home / 20,725,089.20-31,087,342.20-9,365,519.60

Finding the Fourth Proportional to 20,725,089.20, 31,087,342.20 and 9,365,519.60

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Solution

The fourth proportional to 20,725,089.20, 31,087,342.20 and 9,365,519.60 is: 14,048,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,089.20 : 31,087,342.20 = 9,365,519.60 : x
  2. Step 2: Convert to fraction form
    20,725,089.20/31,087,342.20 = 9,365,519.60/x
  3. Step 3: Cross multiply
    20,725,089.20x = 31,087,342.20 × 9,365,519.60
  4. Step 4: Simplify right side
    20,725,089.20x = 291,149,112,686,007.12
  5. Step 5: Solve for x
    x = 291,149,112,686,007.12/20,725,089.20
  6. Step 6: Final answer
    x = 14,048,147.63

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1.5x scale

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.