Home / 21,057,012.40-31,609,138.20-16,285,853.20

Finding the Fourth Proportional to 21,057,012.40, 31,609,138.20 and 16,285,853.20

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Solution

The fourth proportional to 21,057,012.40, 31,609,138.20 and 16,285,853.20 is: 24,447,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057,012.40 : 31,609,138.20 = 16,285,853.20 : x
  2. Step 2: Convert to fraction form
    21,057,012.40/31,609,138.20 = 16,285,853.20/x
  3. Step 3: Cross multiply
    21,057,012.40x = 31,609,138.20 × 16,285,853.20
  4. Step 4: Simplify right side
    21,057,012.40x = 514,781,784,503,712.19
  5. Step 5: Solve for x
    x = 514,781,784,503,712.19/21,057,012.40
  6. Step 6: Final answer
    x = 24,447,047.60

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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.