Home / 65,698,816.95-90,664,954.56-36,332,125.20

Finding the Fourth Proportional to 65,698,816.95, 90,664,954.56 and 36,332,125.20

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Solution

The fourth proportional to 65,698,816.95, 90,664,954.56 and 36,332,125.20 is: 50,138,657.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,698,816.95 : 90,664,954.56 = 36,332,125.20 : x
  2. Step 2: Convert to fraction form
    65,698,816.95/90,664,954.56 = 36,332,125.20/x
  3. Step 3: Cross multiply
    65,698,816.95x = 90,664,954.56 × 36,332,125.20
  4. Step 4: Simplify right side
    65,698,816.95x = 3,294,050,480,326,231.50
  5. Step 5: Solve for x
    x = 3,294,050,480,326,231.50/65,698,816.95
  6. Step 6: Final answer
    x = 50,138,657.49

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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.