Home / 65,698,834.95-90,664,979.40-36,332,143.20

Finding the Fourth Proportional to 65,698,834.95, 90,664,979.40 and 36,332,143.20

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Solution

The fourth proportional to 65,698,834.95, 90,664,979.40 and 36,332,143.20 is: 50,138,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,698,834.95 : 90,664,979.40 = 36,332,143.20 : x
  2. Step 2: Convert to fraction form
    65,698,834.95/90,664,979.40 = 36,332,143.20/x
  3. Step 3: Cross multiply
    65,698,834.95x = 90,664,979.40 × 36,332,143.20
  4. Step 4: Simplify right side
    65,698,834.95x = 3,294,053,014,785,850.50
  5. Step 5: Solve for x
    x = 3,294,053,014,785,850.50/65,698,834.95
  6. Step 6: Final answer
    x = 50,138,682.33

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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.