Home / 314,929,281.40-472,393,922.10-280,491,904.60

Finding the Fourth Proportional to 314,929,281.40, 472,393,922.10 and 280,491,904.60

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Solution

The fourth proportional to 314,929,281.40, 472,393,922.10 and 280,491,904.60 is: 420,737,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,281.40 : 472,393,922.10 = 280,491,904.60 : x
  2. Step 2: Convert to fraction form
    314,929,281.40/472,393,922.10 = 280,491,904.60/x
  3. Step 3: Cross multiply
    314,929,281.40x = 472,393,922.10 × 280,491,904.60
  4. Step 4: Simplify right side
    314,929,281.40x = 132,502,670,931,293,056
  5. Step 5: Solve for x
    x = 132,502,670,931,293,056/314,929,281.40
  6. Step 6: Final answer
    x = 420,737,856.90

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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.