Home / 47,388,002.80-71,082,004.20-38,778,658.60

Finding the Fourth Proportional to 47,388,002.80, 71,082,004.20 and 38,778,658.60

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Solution

The fourth proportional to 47,388,002.80, 71,082,004.20 and 38,778,658.60 is: 58,167,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,388,002.80 : 71,082,004.20 = 38,778,658.60 : x
  2. Step 2: Convert to fraction form
    47,388,002.80/71,082,004.20 = 38,778,658.60/x
  3. Step 3: Cross multiply
    47,388,002.80x = 71,082,004.20 × 38,778,658.60
  4. Step 4: Simplify right side
    47,388,002.80x = 2,756,464,773,475,566.50
  5. Step 5: Solve for x
    x = 2,756,464,773,475,566.50/47,388,002.80
  6. Step 6: Final answer
    x = 58,167,987.90

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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.