Home / 18,709,079.40-28,063,619.10-7,345,751.40

Finding the Fourth Proportional to 18,709,079.40, 28,063,619.10 and 7,345,751.40

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Solution

The fourth proportional to 18,709,079.40, 28,063,619.10 and 7,345,751.40 is: 11,018,627.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,079.40 : 28,063,619.10 = 7,345,751.40 : x
  2. Step 2: Convert to fraction form
    18,709,079.40/28,063,619.10 = 7,345,751.40/x
  3. Step 3: Cross multiply
    18,709,079.40x = 28,063,619.10 × 7,345,751.40
  4. Step 4: Simplify right side
    18,709,079.40x = 206,148,369,292,891.75
  5. Step 5: Solve for x
    x = 206,148,369,292,891.75/18,709,079.40
  6. Step 6: Final answer
    x = 11,018,627.10

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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.