Home / 78,877,973.74-108,795,150.74-55,361,757.89

Finding the Fourth Proportional to 78,877,973.74, 108,795,150.74 and 55,361,757.89

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Solution

The fourth proportional to 78,877,973.74, 108,795,150.74 and 55,361,757.89 is: 76,359,603.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,877,973.74 : 108,795,150.74 = 55,361,757.89 : x
  2. Step 2: Convert to fraction form
    78,877,973.74/108,795,150.74 = 55,361,757.89/x
  3. Step 3: Cross multiply
    78,877,973.74x = 108,795,150.74 × 55,361,757.89
  4. Step 4: Simplify right side
    78,877,973.74x = 6,023,090,794,601,946
  5. Step 5: Solve for x
    x = 6,023,090,794,601,946/78,877,973.74
  6. Step 6: Final answer
    x = 76,359,603.44

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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.