Home / 76,973,310.40-106,138,044.48-49,051,789.60

Finding the Fourth Proportional to 76,973,310.40, 106,138,044.48 and 49,051,789.60

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Solution

The fourth proportional to 76,973,310.40, 106,138,044.48 and 49,051,789.60 is: 67,637,223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,973,310.40 : 106,138,044.48 = 49,051,789.60 : x
  2. Step 2: Convert to fraction form
    76,973,310.40/106,138,044.48 = 49,051,789.60/x
  3. Step 3: Cross multiply
    76,973,310.40x = 106,138,044.48 × 49,051,789.60
  4. Step 4: Simplify right side
    76,973,310.40x = 5,206,261,026,388,402
  5. Step 5: Solve for x
    x = 5,206,261,026,388,402/76,973,310.40
  6. Step 6: Final answer
    x = 67,637,223.86

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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.