Home / 202,143,145.39-278,957,726.96-109,323,653.34

Finding the Fourth Proportional to 202,143,145.39, 278,957,726.96 and 109,323,653.34

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Solution

The fourth proportional to 202,143,145.39, 278,957,726.96 and 109,323,653.34 is: 150,866,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,143,145.39 : 278,957,726.96 = 109,323,653.34 : x
  2. Step 2: Convert to fraction form
    202,143,145.39/278,957,726.96 = 109,323,653.34/x
  3. Step 3: Cross multiply
    202,143,145.39x = 278,957,726.96 × 109,323,653.34
  4. Step 4: Simplify right side
    202,143,145.39x = 30,496,677,838,689,412
  5. Step 5: Solve for x
    x = 30,496,677,838,689,412/202,143,145.39
  6. Step 6: Final answer
    x = 150,866,742.38

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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.