Home / 78,877,973.24-108,795,150.05-55,361,757.39

Finding the Fourth Proportional to 78,877,973.24, 108,795,150.05 and 55,361,757.39

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Solution

The fourth proportional to 78,877,973.24, 108,795,150.05 and 55,361,757.39 is: 76,359,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,877,973.24 : 108,795,150.05 = 55,361,757.39 : x
  2. Step 2: Convert to fraction form
    78,877,973.24/108,795,150.05 = 55,361,757.39/x
  3. Step 3: Cross multiply
    78,877,973.24x = 108,795,150.05 × 55,361,757.39
  4. Step 4: Simplify right side
    78,877,973.24x = 6,023,090,701,903,089
  5. Step 5: Solve for x
    x = 6,023,090,701,903,089/78,877,973.24
  6. Step 6: Final answer
    x = 76,359,602.75

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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.