Home / 307,778,647.12-461,668,889.20-74,608,434.52

Finding the Fourth Proportional to 307,778,647.12, 461,668,889.20 and 74,608,434.52

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Solution

The fourth proportional to 307,778,647.12, 461,668,889.20 and 74,608,434.52 is: 111,912,874.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,778,647.12 : 461,668,889.20 = 74,608,434.52 : x
  2. Step 2: Convert to fraction form
    307,778,647.12/461,668,889.20 = 74,608,434.52/x
  3. Step 3: Cross multiply
    307,778,647.12x = 461,668,889.20 × 74,608,434.52
  4. Step 4: Simplify right side
    307,778,647.12x = 34,444,393,089,799,332
  5. Step 5: Solve for x
    x = 34,444,393,089,799,332/307,778,647.12
  6. Step 6: Final answer
    x = 111,912,874.44

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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.