Home / 21,890,802.30-32,836,203.45-12,820,875.90

Finding the Fourth Proportional to 21,890,802.30, 32,836,203.45 and 12,820,875.90

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Solution

The fourth proportional to 21,890,802.30, 32,836,203.45 and 12,820,875.90 is: 19,231,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890,802.30 : 32,836,203.45 = 12,820,875.90 : x
  2. Step 2: Convert to fraction form
    21,890,802.30/32,836,203.45 = 12,820,875.90/x
  3. Step 3: Cross multiply
    21,890,802.30x = 32,836,203.45 × 12,820,875.90
  4. Step 4: Simplify right side
    21,890,802.30x = 420,988,889,459,601.88
  5. Step 5: Solve for x
    x = 420,988,889,459,601.88/21,890,802.30
  6. Step 6: Final answer
    x = 19,231,313.85

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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.