Home / 72,984,040.74-100,718,242.29-39,493,519.92

Finding the Fourth Proportional to 72,984,040.74, 100,718,242.29 and 39,493,519.92

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Solution

The fourth proportional to 72,984,040.74, 100,718,242.29 and 39,493,519.92 is: 54,501,201.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,984,040.74 : 100,718,242.29 = 39,493,519.92 : x
  2. Step 2: Convert to fraction form
    72,984,040.74/100,718,242.29 = 39,493,519.92/x
  3. Step 3: Cross multiply
    72,984,040.74x = 100,718,242.29 × 39,493,519.92
  4. Step 4: Simplify right side
    72,984,040.74x = 3,977,717,908,187,502
  5. Step 5: Solve for x
    x = 3,977,717,908,187,502/72,984,040.74
  6. Step 6: Final answer
    x = 54,501,201.47

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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.