Home / 340,784,006.40-511,176,009.60-280,317,830.40

Finding the Fourth Proportional to 340,784,006.40, 511,176,009.60 and 280,317,830.40

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Solution

The fourth proportional to 340,784,006.40, 511,176,009.60 and 280,317,830.40 is: 420,476,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,784,006.40 : 511,176,009.60 = 280,317,830.40 : x
  2. Step 2: Convert to fraction form
    340,784,006.40/511,176,009.60 = 280,317,830.40/x
  3. Step 3: Cross multiply
    340,784,006.40x = 511,176,009.60 × 280,317,830.40
  4. Step 4: Simplify right side
    340,784,006.40x = 143,291,749,963,601,568
  5. Step 5: Solve for x
    x = 143,291,749,963,601,568/340,784,006.40
  6. Step 6: Final answer
    x = 420,476,745.60

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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.