Home / 72,462,317.42-99,998,432.91-39,422,803.56

Finding the Fourth Proportional to 72,462,317.42, 99,998,432.91 and 39,422,803.56

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Solution

The fourth proportional to 72,462,317.42, 99,998,432.91 and 39,422,803.56 is: 54,403,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462,317.42 : 99,998,432.91 = 39,422,803.56 : x
  2. Step 2: Convert to fraction form
    72,462,317.42/99,998,432.91 = 39,422,803.56/x
  3. Step 3: Cross multiply
    72,462,317.42x = 99,998,432.91 × 39,422,803.56
  4. Step 4: Simplify right side
    72,462,317.42x = 3,942,218,576,918,769.50
  5. Step 5: Solve for x
    x = 3,942,218,576,918,769.50/72,462,317.42
  6. Step 6: Final answer
    x = 54,403,705.50

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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.