Home / 72,462,318.67-99,998,434.64-39,422,804.81

Finding the Fourth Proportional to 72,462,318.67, 99,998,434.64 and 39,422,804.81

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Solution

The fourth proportional to 72,462,318.67, 99,998,434.64 and 39,422,804.81 is: 54,403,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462,318.67 : 99,998,434.64 = 39,422,804.81 : x
  2. Step 2: Convert to fraction form
    72,462,318.67/99,998,434.64 = 39,422,804.81/x
  3. Step 3: Cross multiply
    72,462,318.67x = 99,998,434.64 × 39,422,804.81
  4. Step 4: Simplify right side
    72,462,318.67x = 3,942,218,769,921,149
  5. Step 5: Solve for x
    x = 3,942,218,769,921,149/72,462,318.67
  6. Step 6: Final answer
    x = 54,403,707.23

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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.