Home / 20,674,539.54-31,018,714.83-9,158,442.30

Finding the Fourth Proportional to 20,674,539.54, 31,018,714.83 and 9,158,442.30

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Solution

The fourth proportional to 20,674,539.54, 31,018,714.83 and 9,158,442.30 is: 13,740,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,539.54 : 31,018,714.83 = 9,158,442.30 : x
  2. Step 2: Convert to fraction form
    20,674,539.54/31,018,714.83 = 9,158,442.30/x
  3. Step 3: Cross multiply
    20,674,539.54x = 31,018,714.83 × 9,158,442.30
  4. Step 4: Simplify right side
    20,674,539.54x = 284,083,109,990,709.31
  5. Step 5: Solve for x
    x = 284,083,109,990,709.31/20,674,539.54
  6. Step 6: Final answer
    x = 13,740,722.47

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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.