Home / 18,887,803.20-28,360,216.80-15,090,004.80

Finding the Fourth Proportional to 18,887,803.20, 28,360,216.80 and 15,090,004.80

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Solution

The fourth proportional to 18,887,803.20, 28,360,216.80 and 15,090,004.80 is: 22,657,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,803.20 : 28,360,216.80 = 15,090,004.80 : x
  2. Step 2: Convert to fraction form
    18,887,803.20/28,360,216.80 = 15,090,004.80/x
  3. Step 3: Cross multiply
    18,887,803.20x = 28,360,216.80 × 15,090,004.80
  4. Step 4: Simplify right side
    18,887,803.20x = 427,955,807,641,040.69
  5. Step 5: Solve for x
    x = 427,955,807,641,040.69/18,887,803.20
  6. Step 6: Final answer
    x = 22,657,786.25

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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.