Home / 136,821,658.94-188,816,342.73-74,938,011.70

Finding the Fourth Proportional to 136,821,658.94, 188,816,342.73 and 74,938,011.70

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Solution

The fourth proportional to 136,821,658.94, 188,816,342.73 and 74,938,011.70 is: 103,415,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,821,658.94 : 188,816,342.73 = 74,938,011.70 : x
  2. Step 2: Convert to fraction form
    136,821,658.94/188,816,342.73 = 74,938,011.70/x
  3. Step 3: Cross multiply
    136,821,658.94x = 188,816,342.73 × 74,938,011.70
  4. Step 4: Simplify right side
    136,821,658.94x = 14,149,521,300,651,950
  5. Step 5: Solve for x
    x = 14,149,521,300,651,950/136,821,658.94
  6. Step 6: Final answer
    x = 103,415,799.88

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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.