Home / 18,800,638.71-28,201,055.38-8,558,335.64

Finding the Fourth Proportional to 18,800,638.71, 28,201,055.38 and 8,558,335.64

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Solution

The fourth proportional to 18,800,638.71, 28,201,055.38 and 8,558,335.64 is: 12,837,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800,638.71 : 28,201,055.38 = 8,558,335.64 : x
  2. Step 2: Convert to fraction form
    18,800,638.71/28,201,055.38 = 8,558,335.64/x
  3. Step 3: Cross multiply
    18,800,638.71x = 28,201,055.38 × 8,558,335.64
  4. Step 4: Simplify right side
    18,800,638.71x = 241,354,097,344,267.75
  5. Step 5: Solve for x
    x = 241,354,097,344,267.75/18,800,638.71
  6. Step 6: Final answer
    x = 12,837,547.76

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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.