Home / 870,038,384.93-1,305,022,184.90-214,972,915.21

Finding the Fourth Proportional to 870,038,384.93, 1,305,022,184.90 and 214,972,915.21

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Solution

The fourth proportional to 870,038,384.93, 1,305,022,184.90 and 214,972,915.21 is: 322,450,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,038,384.93 : 1,305,022,184.90 = 214,972,915.21 : x
  2. Step 2: Convert to fraction form
    870,038,384.93/1,305,022,184.90 = 214,972,915.21/x
  3. Step 3: Cross multiply
    870,038,384.93x = 1,305,022,184.90 × 214,972,915.21
  4. Step 4: Simplify right side
    870,038,384.93x = 280,544,423,498,156,096
  5. Step 5: Solve for x
    x = 280,544,423,498,156,096/870,038,384.93
  6. Step 6: Final answer
    x = 322,450,627.88

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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.