Home / 20,674,539.04-31,018,714.08-9,158,441.80

Finding the Fourth Proportional to 20,674,539.04, 31,018,714.08 and 9,158,441.80

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Solution

The fourth proportional to 20,674,539.04, 31,018,714.08 and 9,158,441.80 is: 13,740,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,539.04 : 31,018,714.08 = 9,158,441.80 : x
  2. Step 2: Convert to fraction form
    20,674,539.04/31,018,714.08 = 9,158,441.80/x
  3. Step 3: Cross multiply
    20,674,539.04x = 31,018,714.08 × 9,158,441.80
  4. Step 4: Simplify right side
    20,674,539.04x = 284,083,087,612,520.56
  5. Step 5: Solve for x
    x = 284,083,087,612,520.56/20,674,539.04
  6. Step 6: Final answer
    x = 13,740,721.72

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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.