Home / 5,120,661,624.40-7,680,992,436.60-1,440,166,978.90

Finding the Fourth Proportional to 5,120,661,624.40, 7,680,992,436.60 and 1,440,166,978.90

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Solution

The fourth proportional to 5,120,661,624.40, 7,680,992,436.60 and 1,440,166,978.90 is: 2,160,250,468.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,661,624.40 : 7,680,992,436.60 = 1,440,166,978.90 : x
  2. Step 2: Convert to fraction form
    5,120,661,624.40/7,680,992,436.60 = 1,440,166,978.90/x
  3. Step 3: Cross multiply
    5,120,661,624.40x = 7,680,992,436.60 × 1,440,166,978.90
  4. Step 4: Simplify right side
    5,120,661,624.40x = 11,061,911,672,371,972,096
  5. Step 5: Solve for x
    x = 11,061,911,672,371,972,096/5,120,661,624.40
  6. Step 6: Final answer
    x = 2,160,250,468.35

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1.5x scale

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.