Home / 135,958,406.40-187,620,229.76-74,079,256.32

Finding the Fourth Proportional to 135,958,406.40, 187,620,229.76 and 74,079,256.32

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Solution

The fourth proportional to 135,958,406.40, 187,620,229.76 and 74,079,256.32 is: 102,228,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,958,406.40 : 187,620,229.76 = 74,079,256.32 : x
  2. Step 2: Convert to fraction form
    135,958,406.40/187,620,229.76 = 74,079,256.32/x
  3. Step 3: Cross multiply
    135,958,406.40x = 187,620,229.76 × 74,079,256.32
  4. Step 4: Simplify right side
    135,958,406.40x = 13,898,767,091,208,330
  5. Step 5: Solve for x
    x = 13,898,767,091,208,330/135,958,406.40
  6. Step 6: Final answer
    x = 102,228,081.80

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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.