Home / 72,811,046.33-100,478,564.64-39,771,282.81

Finding the Fourth Proportional to 72,811,046.33, 100,478,564.64 and 39,771,282.81

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Solution

The fourth proportional to 72,811,046.33, 100,478,564.64 and 39,771,282.81 is: 54,883,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,811,046.33 : 100,478,564.64 = 39,771,282.81 : x
  2. Step 2: Convert to fraction form
    72,811,046.33/100,478,564.64 = 39,771,282.81/x
  3. Step 3: Cross multiply
    72,811,046.33x = 100,478,564.64 × 39,771,282.81
  4. Step 4: Simplify right side
    72,811,046.33x = 3,996,161,410,640,306
  5. Step 5: Solve for x
    x = 3,996,161,410,640,306/72,811,046.33
  6. Step 6: Final answer
    x = 54,883,999.23

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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.