Home / 28,560,389.18-42,842,079.84-21,747,647.66

Finding the Fourth Proportional to 28,560,389.18, 42,842,079.84 and 21,747,647.66

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Solution

The fourth proportional to 28,560,389.18, 42,842,079.84 and 21,747,647.66 is: 32,622,610.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560,389.18 : 42,842,079.84 = 21,747,647.66 : x
  2. Step 2: Convert to fraction form
    28,560,389.18/42,842,079.84 = 21,747,647.66/x
  3. Step 3: Cross multiply
    28,560,389.18x = 42,842,079.84 × 21,747,647.66
  4. Step 4: Simplify right side
    28,560,389.18x = 931,714,457,381,909.25
  5. Step 5: Solve for x
    x = 931,714,457,381,909.25/28,560,389.18
  6. Step 6: Final answer
    x = 32,622,610.69

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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.