Home / 1,277,156,786.60-1,915,735,179.90-971,046,770.60

Finding the Fourth Proportional to 1,277,156,786.60, 1,915,735,179.90 and 971,046,770.60

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Solution

The fourth proportional to 1,277,156,786.60, 1,915,735,179.90 and 971,046,770.60 is: 1,456,570,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,156,786.60 : 1,915,735,179.90 = 971,046,770.60 : x
  2. Step 2: Convert to fraction form
    1,277,156,786.60/1,915,735,179.90 = 971,046,770.60/x
  3. Step 3: Cross multiply
    1,277,156,786.60x = 1,915,735,179.90 × 971,046,770.60
  4. Step 4: Simplify right side
    1,277,156,786.60x = 1,860,268,459,766,705,152
  5. Step 5: Solve for x
    x = 1,860,268,459,766,705,152/1,277,156,786.60
  6. Step 6: Final answer
    x = 1,456,570,155.90

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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.