Home / 128,011,545.51-191,939,560.33-50,195,224.23

Finding the Fourth Proportional to 128,011,545.51, 191,939,560.33 and 50,195,224.23

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Solution

The fourth proportional to 128,011,545.51, 191,939,560.33 and 50,195,224.23 is: 75,262,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,545.51 : 191,939,560.33 = 50,195,224.23 : x
  2. Step 2: Convert to fraction form
    128,011,545.51/191,939,560.33 = 50,195,224.23/x
  3. Step 3: Cross multiply
    128,011,545.51x = 191,939,560.33 × 50,195,224.23
  4. Step 4: Simplify right side
    128,011,545.51x = 9,634,449,269,371,962
  5. Step 5: Solve for x
    x = 9,634,449,269,371,962/128,011,545.51
  6. Step 6: Final answer
    x = 75,262,346.31

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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.