Home / 72,021,050.36-99,389,041.94-38,981,293.72

Finding the Fourth Proportional to 72,021,050.36, 99,389,041.94 and 38,981,293.72

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Solution

The fourth proportional to 72,021,050.36, 99,389,041.94 and 38,981,293.72 is: 53,794,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,021,050.36 : 99,389,041.94 = 38,981,293.72 : x
  2. Step 2: Convert to fraction form
    72,021,050.36/99,389,041.94 = 38,981,293.72/x
  3. Step 3: Cross multiply
    72,021,050.36x = 99,389,041.94 × 38,981,293.72
  4. Step 4: Simplify right side
    72,021,050.36x = 3,874,313,436,412,538.50
  5. Step 5: Solve for x
    x = 3,874,313,436,412,538.50/72,021,050.36
  6. Step 6: Final answer
    x = 53,794,181.24

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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.