Home / 13,028,303.76-17,979,158.76-7,147,898.64

Finding the Fourth Proportional to 13,028,303.76, 17,979,158.76 and 7,147,898.64

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Solution

The fourth proportional to 13,028,303.76, 17,979,158.76 and 7,147,898.64 is: 9,864,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028,303.76 : 17,979,158.76 = 7,147,898.64 : x
  2. Step 2: Convert to fraction form
    13,028,303.76/17,979,158.76 = 7,147,898.64/x
  3. Step 3: Cross multiply
    13,028,303.76x = 17,979,158.76 × 7,147,898.64
  4. Step 4: Simplify right side
    13,028,303.76x = 128,513,204,448,948.09
  5. Step 5: Solve for x
    x = 128,513,204,448,948.09/13,028,303.76
  6. Step 6: Final answer
    x = 9,864,154.75

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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.