Home / 340,784,016.40-511,176,024.60-280,317,840.40

Finding the Fourth Proportional to 340,784,016.40, 511,176,024.60 and 280,317,840.40

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Solution

The fourth proportional to 340,784,016.40, 511,176,024.60 and 280,317,840.40 is: 420,476,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,784,016.40 : 511,176,024.60 = 280,317,840.40 : x
  2. Step 2: Convert to fraction form
    340,784,016.40/511,176,024.60 = 280,317,840.40/x
  3. Step 3: Cross multiply
    340,784,016.40x = 511,176,024.60 × 280,317,840.40
  4. Step 4: Simplify right side
    340,784,016.40x = 143,291,759,280,129,264
  5. Step 5: Solve for x
    x = 143,291,759,280,129,264/340,784,016.40
  6. Step 6: Final answer
    x = 420,476,760.60

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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.