Home / 7,422,143.78-11,133,509.72-3,530,666.18

Finding the Fourth Proportional to 7,422,143.78, 11,133,509.72 and 3,530,666.18

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Solution

The fourth proportional to 7,422,143.78, 11,133,509.72 and 3,530,666.18 is: 5,296,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422,143.78 : 11,133,509.72 = 3,530,666.18 : x
  2. Step 2: Convert to fraction form
    7,422,143.78/11,133,509.72 = 3,530,666.18/x
  3. Step 3: Cross multiply
    7,422,143.78x = 11,133,509.72 × 3,530,666.18
  4. Step 4: Simplify right side
    7,422,143.78x = 39,308,706,159,784.39
  5. Step 5: Solve for x
    x = 39,308,706,159,784.39/7,422,143.78
  6. Step 6: Final answer
    x = 5,296,139.14

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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.