Home / 20,439,386.80-30,621,755.40-16,632,257.20

Finding the Fourth Proportional to 20,439,386.80, 30,621,755.40 and 16,632,257.20

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Solution

The fourth proportional to 20,439,386.80, 30,621,755.40 and 16,632,257.20 is: 24,918,013.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,386.80 : 30,621,755.40 = 16,632,257.20 : x
  2. Step 2: Convert to fraction form
    20,439,386.80/30,621,755.40 = 16,632,257.20/x
  3. Step 3: Cross multiply
    20,439,386.80x = 30,621,755.40 × 16,632,257.20
  4. Step 4: Simplify right side
    20,439,386.80x = 509,308,911,728,288.81
  5. Step 5: Solve for x
    x = 509,308,911,728,288.81/20,439,386.80
  6. Step 6: Final answer
    x = 24,918,013.28

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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.