Home / 128,011,383.70-191,939,317.70-50,195,062.62

Finding the Fourth Proportional to 128,011,383.70, 191,939,317.70 and 50,195,062.62

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Solution

The fourth proportional to 128,011,383.70, 191,939,317.70 and 50,195,062.62 is: 75,262,103.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,383.70 : 191,939,317.70 = 50,195,062.62 : x
  2. Step 2: Convert to fraction form
    128,011,383.70/191,939,317.70 = 50,195,062.62/x
  3. Step 3: Cross multiply
    128,011,383.70x = 191,939,317.70 × 50,195,062.62
  4. Step 4: Simplify right side
    128,011,383.70x = 9,634,406,070,852,472
  5. Step 5: Solve for x
    x = 9,634,406,070,852,472/128,011,383.70
  6. Step 6: Final answer
    x = 75,262,103.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.