Home / 126,629,429.76-189,957,916.80-40,347,555.84

Finding the Fourth Proportional to 126,629,429.76, 189,957,916.80 and 40,347,555.84

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Solution

The fourth proportional to 126,629,429.76, 189,957,916.80 and 40,347,555.84 is: 60,525,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,629,429.76 : 189,957,916.80 = 40,347,555.84 : x
  2. Step 2: Convert to fraction form
    126,629,429.76/189,957,916.80 = 40,347,555.84/x
  3. Step 3: Cross multiply
    126,629,429.76x = 189,957,916.80 × 40,347,555.84
  4. Step 4: Simplify right side
    126,629,429.76x = 7,664,337,655,338,075
  5. Step 5: Solve for x
    x = 7,664,337,655,338,075/126,629,429.76
  6. Step 6: Final answer
    x = 60,525,721.94

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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.