Home / 249,786,859.20-374,715,980.64-77,278,398.72

Finding the Fourth Proportional to 249,786,859.20, 374,715,980.64 and 77,278,398.72

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Solution

The fourth proportional to 249,786,859.20, 374,715,980.64 and 77,278,398.72 is: 115,928,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,786,859.20 : 374,715,980.64 = 77,278,398.72 : x
  2. Step 2: Convert to fraction form
    249,786,859.20/374,715,980.64 = 77,278,398.72/x
  3. Step 3: Cross multiply
    249,786,859.20x = 374,715,980.64 × 77,278,398.72
  4. Step 4: Simplify right side
    249,786,859.20x = 28,957,450,958,653,720
  5. Step 5: Solve for x
    x = 28,957,450,958,653,720/249,786,859.20
  6. Step 6: Final answer
    x = 115,928,640.33

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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.