Home / 103,696,039.41-143,103,421.88-57,289,282.68

Finding the Fourth Proportional to 103,696,039.41, 143,103,421.88 and 57,289,282.68

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Solution

The fourth proportional to 103,696,039.41, 143,103,421.88 and 57,289,282.68 is: 79,060,805.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,696,039.41 : 143,103,421.88 = 57,289,282.68 : x
  2. Step 2: Convert to fraction form
    103,696,039.41/143,103,421.88 = 57,289,282.68/x
  3. Step 3: Cross multiply
    103,696,039.41x = 143,103,421.88 × 57,289,282.68
  4. Step 4: Simplify right side
    103,696,039.41x = 8,198,292,388,558,617
  5. Step 5: Solve for x
    x = 8,198,292,388,558,617/103,696,039.41
  6. Step 6: Final answer
    x = 79,060,805.36

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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.