Home / 21,025,689.60-29,015,398.08-11,733,161.28

Finding the Fourth Proportional to 21,025,689.60, 29,015,398.08 and 11,733,161.28

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Solution

The fourth proportional to 21,025,689.60, 29,015,398.08 and 11,733,161.28 is: 16,191,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025,689.60 : 29,015,398.08 = 11,733,161.28 : x
  2. Step 2: Convert to fraction form
    21,025,689.60/29,015,398.08 = 11,733,161.28/x
  3. Step 3: Cross multiply
    21,025,689.60x = 29,015,398.08 × 11,733,161.28
  4. Step 4: Simplify right side
    21,025,689.60x = 340,442,345,276,042.31
  5. Step 5: Solve for x
    x = 340,442,345,276,042.31/21,025,689.60
  6. Step 6: Final answer
    x = 16,191,732.67

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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.