Home / 13,312,991.27-18,368,756.48-9,181,701.83

Finding the Fourth Proportional to 13,312,991.27, 18,368,756.48 and 9,181,701.83

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Solution

The fourth proportional to 13,312,991.27, 18,368,756.48 and 9,181,701.83 is: 12,668,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312,991.27 : 18,368,756.48 = 9,181,701.83 : x
  2. Step 2: Convert to fraction form
    13,312,991.27/18,368,756.48 = 9,181,701.83/x
  3. Step 3: Cross multiply
    13,312,991.27x = 18,368,756.48 × 9,181,701.83
  4. Step 4: Simplify right side
    13,312,991.27x = 168,656,444,918,350.84
  5. Step 5: Solve for x
    x = 168,656,444,918,350.84/13,312,991.27
  6. Step 6: Final answer
    x = 12,668,561.22

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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.