Home / 305,860,054.66-421,976,155.16-200,073,853.17

Finding the Fourth Proportional to 305,860,054.66, 421,976,155.16 and 200,073,853.17

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Solution

The fourth proportional to 305,860,054.66, 421,976,155.16 and 200,073,853.17 is: 276,029,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,860,054.66 : 421,976,155.16 = 200,073,853.17 : x
  2. Step 2: Convert to fraction form
    305,860,054.66/421,976,155.16 = 200,073,853.17/x
  3. Step 3: Cross multiply
    305,860,054.66x = 421,976,155.16 × 200,073,853.17
  4. Step 4: Simplify right side
    305,860,054.66x = 84,426,395,309,223,168
  5. Step 5: Solve for x
    x = 84,426,395,309,223,168/305,860,054.66
  6. Step 6: Final answer
    x = 276,029,491.34

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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.