Home / 72,809,437.14-100,476,359.37-39,769,680.98

Finding the Fourth Proportional to 72,809,437.14, 100,476,359.37 and 39,769,680.98

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Solution

The fourth proportional to 72,809,437.14, 100,476,359.37 and 39,769,680.98 is: 54,881,797.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,809,437.14 : 100,476,359.37 = 39,769,680.98 : x
  2. Step 2: Convert to fraction form
    72,809,437.14/100,476,359.37 = 39,769,680.98/x
  3. Step 3: Cross multiply
    72,809,437.14x = 100,476,359.37 × 39,769,680.98
  4. Step 4: Simplify right side
    72,809,437.14x = 3,995,912,758,176,733.50
  5. Step 5: Solve for x
    x = 3,995,912,758,176,733.50/72,809,437.14
  6. Step 6: Final answer
    x = 54,881,797.13

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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.