Home / 72,497,835.90-100,047,007.95-39,458,321.94

Finding the Fourth Proportional to 72,497,835.90, 100,047,007.95 and 39,458,321.94

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Solution

The fourth proportional to 72,497,835.90, 100,047,007.95 and 39,458,321.94 is: 54,452,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,497,835.90 : 100,047,007.95 = 39,458,321.94 : x
  2. Step 2: Convert to fraction form
    72,497,835.90/100,047,007.95 = 39,458,321.94/x
  3. Step 3: Cross multiply
    72,497,835.90x = 100,047,007.95 × 39,458,321.94
  4. Step 4: Simplify right side
    72,497,835.90x = 3,947,687,048,824,839.50
  5. Step 5: Solve for x
    x = 3,947,687,048,824,839.50/72,497,835.90
  6. Step 6: Final answer
    x = 54,452,481.23

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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.