Home / 77,247,128.20-115,945,341.90-47,014,040.20

Finding the Fourth Proportional to 77,247,128.20, 115,945,341.90 and 47,014,040.20

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Solution

The fourth proportional to 77,247,128.20, 115,945,341.90 and 47,014,040.20 is: 70,566,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,247,128.20 : 115,945,341.90 = 47,014,040.20 : x
  2. Step 2: Convert to fraction form
    77,247,128.20/115,945,341.90 = 47,014,040.20/x
  3. Step 3: Cross multiply
    77,247,128.20x = 115,945,341.90 × 47,014,040.20
  4. Step 4: Simplify right side
    77,247,128.20x = 5,451,058,965,089,345
  5. Step 5: Solve for x
    x = 5,451,058,965,089,345/77,247,128.20
  6. Step 6: Final answer
    x = 70,566,493.44

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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.