Home / 145,383,398.40-217,862,521.20-123,700,605.60

Finding the Fourth Proportional to 145,383,398.40, 217,862,521.20 and 123,700,605.60

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Solution

The fourth proportional to 145,383,398.40, 217,862,521.20 and 123,700,605.60 is: 185,370,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,383,398.40 : 217,862,521.20 = 123,700,605.60 : x
  2. Step 2: Convert to fraction form
    145,383,398.40/217,862,521.20 = 123,700,605.60/x
  3. Step 3: Cross multiply
    145,383,398.40x = 217,862,521.20 × 123,700,605.60
  4. Step 4: Simplify right side
    145,383,398.40x = 26,949,725,809,982,836
  5. Step 5: Solve for x
    x = 26,949,725,809,982,836/145,383,398.40
  6. Step 6: Final answer
    x = 185,370,036.10

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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.