Home / 305,208,890.85-457,813,336.28-293,304,612.45

Finding the Fourth Proportional to 305,208,890.85, 457,813,336.28 and 293,304,612.45

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Solution

The fourth proportional to 305,208,890.85, 457,813,336.28 and 293,304,612.45 is: 439,956,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,208,890.85 : 457,813,336.28 = 293,304,612.45 : x
  2. Step 2: Convert to fraction form
    305,208,890.85/457,813,336.28 = 293,304,612.45/x
  3. Step 3: Cross multiply
    305,208,890.85x = 457,813,336.28 × 293,304,612.45
  4. Step 4: Simplify right side
    305,208,890.85x = 134,278,763,170,580,384
  5. Step 5: Solve for x
    x = 134,278,763,170,580,384/305,208,890.85
  6. Step 6: Final answer
    x = 439,956,918.68

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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.