Home / 20,628,043.20-30,975,112.80-16,403,342.40

Finding the Fourth Proportional to 20,628,043.20, 30,975,112.80 and 16,403,342.40

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Solution

The fourth proportional to 20,628,043.20, 30,975,112.80 and 16,403,342.40 is: 24,631,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628,043.20 : 30,975,112.80 = 16,403,342.40 : x
  2. Step 2: Convert to fraction form
    20,628,043.20/30,975,112.80 = 16,403,342.40/x
  3. Step 3: Cross multiply
    20,628,043.20x = 30,975,112.80 × 16,403,342.40
  4. Step 4: Simplify right side
    20,628,043.20x = 508,095,381,137,022.75
  5. Step 5: Solve for x
    x = 508,095,381,137,022.75/20,628,043.20
  6. Step 6: Final answer
    x = 24,631,293.25

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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.