Home / 1,274,156,778.55-1,911,235,167.83-401,025,787.60

Finding the Fourth Proportional to 1,274,156,778.55, 1,911,235,167.83 and 401,025,787.60

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Solution

The fourth proportional to 1,274,156,778.55, 1,911,235,167.83 and 401,025,787.60 is: 601,538,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,156,778.55 : 1,911,235,167.83 = 401,025,787.60 : x
  2. Step 2: Convert to fraction form
    1,274,156,778.55/1,911,235,167.83 = 401,025,787.60/x
  3. Step 3: Cross multiply
    1,274,156,778.55x = 1,911,235,167.83 × 401,025,787.60
  4. Step 4: Simplify right side
    1,274,156,778.55x = 766,454,588,467,843,968
  5. Step 5: Solve for x
    x = 766,454,588,467,843,968/1,274,156,778.55
  6. Step 6: Final answer
    x = 601,538,681.40

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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.