Home / 307,584,009.60-461,376,014.40-287,279,318.40

Finding the Fourth Proportional to 307,584,009.60, 461,376,014.40 and 287,279,318.40

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Solution

The fourth proportional to 307,584,009.60, 461,376,014.40 and 287,279,318.40 is: 430,918,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,584,009.60 : 461,376,014.40 = 287,279,318.40 : x
  2. Step 2: Convert to fraction form
    307,584,009.60/461,376,014.40 = 287,279,318.40/x
  3. Step 3: Cross multiply
    307,584,009.60x = 461,376,014.40 × 287,279,318.40
  4. Step 4: Simplify right side
    307,584,009.60x = 132,543,786,942,940,560
  5. Step 5: Solve for x
    x = 132,543,786,942,940,560/307,584,009.60
  6. Step 6: Final answer
    x = 430,918,977.60

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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.