Home / 18,720,206.63-28,080,309.95-4,536,782.63

Finding the Fourth Proportional to 18,720,206.63, 28,080,309.95 and 4,536,782.63

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Solution

The fourth proportional to 18,720,206.63, 28,080,309.95 and 4,536,782.63 is: 6,805,173.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,206.63 : 28,080,309.95 = 4,536,782.63 : x
  2. Step 2: Convert to fraction form
    18,720,206.63/28,080,309.95 = 4,536,782.63/x
  3. Step 3: Cross multiply
    18,720,206.63x = 28,080,309.95 × 4,536,782.63
  4. Step 4: Simplify right side
    18,720,206.63x = 127,394,262,263,090.70
  5. Step 5: Solve for x
    x = 127,394,262,263,090.70/18,720,206.63
  6. Step 6: Final answer
    x = 6,805,173.94

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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.