Home / 21,353,232.60-31,966,863.30-18,833,808.60

Finding the Fourth Proportional to 21,353,232.60, 31,966,863.30 and 18,833,808.60

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Solution

The fourth proportional to 21,353,232.60, 31,966,863.30 and 18,833,808.60 is: 28,195,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353,232.60 : 31,966,863.30 = 18,833,808.60 : x
  2. Step 2: Convert to fraction form
    21,353,232.60/31,966,863.30 = 18,833,808.60/x
  3. Step 3: Cross multiply
    21,353,232.60x = 31,966,863.30 × 18,833,808.60
  4. Step 4: Simplify right side
    21,353,232.60x = 602,057,784,934,564.50
  5. Step 5: Solve for x
    x = 602,057,784,934,564.50/21,353,232.60
  6. Step 6: Final answer
    x = 28,195,158.84

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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.