Home / 300,304,813.80-450,457,220.70-127,787,255.40

Finding the Fourth Proportional to 300,304,813.80, 450,457,220.70 and 127,787,255.40

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Solution

The fourth proportional to 300,304,813.80, 450,457,220.70 and 127,787,255.40 is: 191,680,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,304,813.80 : 450,457,220.70 = 127,787,255.40 : x
  2. Step 2: Convert to fraction form
    300,304,813.80/450,457,220.70 = 127,787,255.40/x
  3. Step 3: Cross multiply
    300,304,813.80x = 450,457,220.70 × 127,787,255.40
  4. Step 4: Simplify right side
    300,304,813.80x = 57,562,691,908,365,064
  5. Step 5: Solve for x
    x = 57,562,691,908,365,064/300,304,813.80
  6. Step 6: Final answer
    x = 191,680,883.10

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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.