Home / 300,304,815.80-450,457,223.70-127,787,257.40

Finding the Fourth Proportional to 300,304,815.80, 450,457,223.70 and 127,787,257.40

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Solution

The fourth proportional to 300,304,815.80, 450,457,223.70 and 127,787,257.40 is: 191,680,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,304,815.80 : 450,457,223.70 = 127,787,257.40 : x
  2. Step 2: Convert to fraction form
    300,304,815.80/450,457,223.70 = 127,787,257.40/x
  3. Step 3: Cross multiply
    300,304,815.80x = 450,457,223.70 × 127,787,257.40
  4. Step 4: Simplify right side
    300,304,815.80x = 57,562,693,192,641,280
  5. Step 5: Solve for x
    x = 57,562,693,192,641,280/300,304,815.80
  6. Step 6: Final answer
    x = 191,680,886.10

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1.5x scale

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.