Home / 314,929,258.40-472,393,887.60-280,491,881.60

Finding the Fourth Proportional to 314,929,258.40, 472,393,887.60 and 280,491,881.60

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Solution

The fourth proportional to 314,929,258.40, 472,393,887.60 and 280,491,881.60 is: 420,737,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,258.40 : 472,393,887.60 = 280,491,881.60 : x
  2. Step 2: Convert to fraction form
    314,929,258.40/472,393,887.60 = 280,491,881.60/x
  3. Step 3: Cross multiply
    314,929,258.40x = 472,393,887.60 × 280,491,881.60
  4. Step 4: Simplify right side
    314,929,258.40x = 132,502,650,389,262,928
  5. Step 5: Solve for x
    x = 132,502,650,389,262,928/314,929,258.40
  6. Step 6: Final answer
    x = 420,737,822.40

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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.