Home / 78,044,374.73-117,057,449.43-31,355,970.51

Finding the Fourth Proportional to 78,044,374.73, 117,057,449.43 and 31,355,970.51

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Solution

The fourth proportional to 78,044,374.73, 117,057,449.43 and 31,355,970.51 is: 47,030,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044,374.73 : 117,057,449.43 = 31,355,970.51 : x
  2. Step 2: Convert to fraction form
    78,044,374.73/117,057,449.43 = 31,355,970.51/x
  3. Step 3: Cross multiply
    78,044,374.73x = 117,057,449.43 × 31,355,970.51
  4. Step 4: Simplify right side
    78,044,374.73x = 3,670,449,932,302,896.50
  5. Step 5: Solve for x
    x = 3,670,449,932,302,896.50/78,044,374.73
  6. Step 6: Final answer
    x = 47,030,294.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.