Home / 21,856,490.40-32,784,428.40-9,889,207.20

Finding the Fourth Proportional to 21,856,490.40, 32,784,428.40 and 9,889,207.20

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Solution

The fourth proportional to 21,856,490.40, 32,784,428.40 and 9,889,207.20 is: 14,833,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,856,490.40 : 32,784,428.40 = 9,889,207.20 : x
  2. Step 2: Convert to fraction form
    21,856,490.40/32,784,428.40 = 9,889,207.20/x
  3. Step 3: Cross multiply
    21,856,490.40x = 32,784,428.40 × 9,889,207.20
  4. Step 4: Simplify right side
    21,856,490.40x = 324,212,005,381,164.44
  5. Step 5: Solve for x
    x = 324,212,005,381,164.44/21,856,490.40
  6. Step 6: Final answer
    x = 14,833,671.80

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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.