Home / 310,737,627,695.78-428,813,362,585.53-173,562,455,817.57

Finding the Fourth Proportional to 310,737,627,695.78, 428,813,362,585.53 and 173,562,455,817.57

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Solution

The fourth proportional to 310,737,627,695.78, 428,813,362,585.53 and 173,562,455,817.57 is: 239,513,640,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,737,627,695.78 : 428,813,362,585.53 = 173,562,455,817.57 : x
  2. Step 2: Convert to fraction form
    310,737,627,695.78/428,813,362,585.53 = 173,562,455,817.57/x
  3. Step 3: Cross multiply
    310,737,627,695.78x = 428,813,362,585.53 × 173,562,455,817.57
  4. Step 4: Simplify right side
    310,737,627,695.78x = 74,425,900,297,734,680,739,840
  5. Step 5: Solve for x
    x = 74,425,900,297,734,680,739,840/310,737,627,695.78
  6. Step 6: Final answer
    x = 239,513,640,010.79

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1.5x scale

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.