Home / 28,728,362.71-43,092,260.06-13,161,775.78

Finding the Fourth Proportional to 28,728,362.71, 43,092,260.06 and 13,161,775.78

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Solution

The fourth proportional to 28,728,362.71, 43,092,260.06 and 13,161,775.78 is: 19,742,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,362.71 : 43,092,260.06 = 13,161,775.78 : x
  2. Step 2: Convert to fraction form
    28,728,362.71/43,092,260.06 = 13,161,775.78/x
  3. Step 3: Cross multiply
    28,728,362.71x = 43,092,260.06 × 13,161,775.78
  4. Step 4: Simplify right side
    28,728,362.71x = 567,170,664,697,360.38
  5. Step 5: Solve for x
    x = 567,170,664,697,360.38/28,728,362.71
  6. Step 6: Final answer
    x = 19,742,533.56

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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.