Home / 21,032,687.90-31,551,984.30-6,654,256.40

Finding the Fourth Proportional to 21,032,687.90, 31,551,984.30 and 6,654,256.40

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Solution

The fourth proportional to 21,032,687.90, 31,551,984.30 and 6,654,256.40 is: 9,982,318.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,687.90 : 31,551,984.30 = 6,654,256.40 : x
  2. Step 2: Convert to fraction form
    21,032,687.90/31,551,984.30 = 6,654,256.40/x
  3. Step 3: Cross multiply
    21,032,687.90x = 31,551,984.30 × 6,654,256.40
  4. Step 4: Simplify right side
    21,032,687.90x = 209,954,993,460,974.53
  5. Step 5: Solve for x
    x = 209,954,993,460,974.53/21,032,687.90
  6. Step 6: Final answer
    x = 9,982,318.69

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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.