Home / 20,790,035.60-31,185,053.40-8,655,466.10

Finding the Fourth Proportional to 20,790,035.60, 31,185,053.40 and 8,655,466.10

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Solution

The fourth proportional to 20,790,035.60, 31,185,053.40 and 8,655,466.10 is: 12,983,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,035.60 : 31,185,053.40 = 8,655,466.10 : x
  2. Step 2: Convert to fraction form
    20,790,035.60/31,185,053.40 = 8,655,466.10/x
  3. Step 3: Cross multiply
    20,790,035.60x = 31,185,053.40 × 8,655,466.10
  4. Step 4: Simplify right side
    20,790,035.60x = 269,921,172,530,389.72
  5. Step 5: Solve for x
    x = 269,921,172,530,389.72/20,790,035.60
  6. Step 6: Final answer
    x = 12,983,199.15

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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.