Home / 65,698,879.04-90,665,040.12-36,332,187.20

Finding the Fourth Proportional to 65,698,879.04, 90,665,040.12 and 36,332,187.20

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Solution

The fourth proportional to 65,698,879.04, 90,665,040.12 and 36,332,187.20 is: 50,138,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,698,879.04 : 90,665,040.12 = 36,332,187.20 : x
  2. Step 2: Convert to fraction form
    65,698,879.04/90,665,040.12 = 36,332,187.20/x
  3. Step 3: Cross multiply
    65,698,879.04x = 90,665,040.12 × 36,332,187.20
  4. Step 4: Simplify right side
    65,698,879.04x = 3,294,059,210,135,351
  5. Step 5: Solve for x
    x = 3,294,059,210,135,351/65,698,879.04
  6. Step 6: Final answer
    x = 50,138,742.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.