Home / 47,388,003.80-71,082,005.70-38,778,659.60

Finding the Fourth Proportional to 47,388,003.80, 71,082,005.70 and 38,778,659.60

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Solution

The fourth proportional to 47,388,003.80, 71,082,005.70 and 38,778,659.60 is: 58,167,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,388,003.80 : 71,082,005.70 = 38,778,659.60 : x
  2. Step 2: Convert to fraction form
    47,388,003.80/71,082,005.70 = 38,778,659.60/x
  3. Step 3: Cross multiply
    47,388,003.80x = 71,082,005.70 × 38,778,659.60
  4. Step 4: Simplify right side
    47,388,003.80x = 2,756,464,902,725,560
  5. Step 5: Solve for x
    x = 2,756,464,902,725,560/47,388,003.80
  6. Step 6: Final answer
    x = 58,167,989.40

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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.