Home / 100,521,139.70-138,725,098.23-75,697,530.59

Finding the Fourth Proportional to 100,521,139.70, 138,725,098.23 and 75,697,530.59

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Solution

The fourth proportional to 100,521,139.70, 138,725,098.23 and 75,697,530.59 is: 104,467,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,521,139.70 : 138,725,098.23 = 75,697,530.59 : x
  2. Step 2: Convert to fraction form
    100,521,139.70/138,725,098.23 = 75,697,530.59/x
  3. Step 3: Cross multiply
    100,521,139.70x = 138,725,098.23 × 75,697,530.59
  4. Step 4: Simplify right side
    100,521,139.70x = 10,501,147,366,172,552
  5. Step 5: Solve for x
    x = 10,501,147,366,172,552/100,521,139.70
  6. Step 6: Final answer
    x = 104,467,054.37

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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.