Home / 18,720,032.20-28,080,048.30-7,360,851.40

Finding the Fourth Proportional to 18,720,032.20, 28,080,048.30 and 7,360,851.40

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Solution

The fourth proportional to 18,720,032.20, 28,080,048.30 and 7,360,851.40 is: 11,041,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,032.20 : 28,080,048.30 = 7,360,851.40 : x
  2. Step 2: Convert to fraction form
    18,720,032.20/28,080,048.30 = 7,360,851.40/x
  3. Step 3: Cross multiply
    18,720,032.20x = 28,080,048.30 × 7,360,851.40
  4. Step 4: Simplify right side
    18,720,032.20x = 206,693,062,841,122.62
  5. Step 5: Solve for x
    x = 206,693,062,841,122.62/18,720,032.20
  6. Step 6: Final answer
    x = 11,041,277.10

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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.