Home / 12,817,769.48-17,688,078.52-7,312,926.44

Finding the Fourth Proportional to 12,817,769.48, 17,688,078.52 and 7,312,926.44

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Solution

The fourth proportional to 12,817,769.48, 17,688,078.52 and 7,312,926.44 is: 10,091,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817,769.48 : 17,688,078.52 = 7,312,926.44 : x
  2. Step 2: Convert to fraction form
    12,817,769.48/17,688,078.52 = 7,312,926.44/x
  3. Step 3: Cross multiply
    12,817,769.48x = 17,688,078.52 × 7,312,926.44
  4. Step 4: Simplify right side
    12,817,769.48x = 129,351,617,081,704.08
  5. Step 5: Solve for x
    x = 129,351,617,081,704.08/12,817,769.48
  6. Step 6: Final answer
    x = 10,091,585.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.