Home / 136,821,658.44-188,816,342.04-74,938,011.21

Finding the Fourth Proportional to 136,821,658.44, 188,816,342.04 and 74,938,011.21

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Solution

The fourth proportional to 136,821,658.44, 188,816,342.04 and 74,938,011.21 is: 103,415,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,821,658.44 : 188,816,342.04 = 74,938,011.21 : x
  2. Step 2: Convert to fraction form
    136,821,658.44/188,816,342.04 = 74,938,011.21/x
  3. Step 3: Cross multiply
    136,821,658.44x = 188,816,342.04 × 74,938,011.21
  4. Step 4: Simplify right side
    136,821,658.44x = 14,149,521,156,424,712
  5. Step 5: Solve for x
    x = 14,149,521,156,424,712/136,821,658.44
  6. Step 6: Final answer
    x = 103,415,799.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.