Home / 20,825,650.64-28,739,178.60-11,658,368.72

Finding the Fourth Proportional to 20,825,650.64, 28,739,178.60 and 11,658,368.72

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Solution

The fourth proportional to 20,825,650.64, 28,739,178.60 and 11,658,368.72 is: 16,088,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,825,650.64 : 28,739,178.60 = 11,658,368.72 : x
  2. Step 2: Convert to fraction form
    20,825,650.64/28,739,178.60 = 11,658,368.72/x
  3. Step 3: Cross multiply
    20,825,650.64x = 28,739,178.60 × 11,658,368.72
  4. Step 4: Simplify right side
    20,825,650.64x = 335,051,940,828,733.44
  5. Step 5: Solve for x
    x = 335,051,940,828,733.44/20,825,650.64
  6. Step 6: Final answer
    x = 16,088,426.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.