Home / 1,294,708,206.80-1,942,062,310.20-1,285,638,280.40

Finding the Fourth Proportional to 1,294,708,206.80, 1,942,062,310.20 and 1,285,638,280.40

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Solution

The fourth proportional to 1,294,708,206.80, 1,942,062,310.20 and 1,285,638,280.40 is: 1,928,457,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,708,206.80 : 1,942,062,310.20 = 1,285,638,280.40 : x
  2. Step 2: Convert to fraction form
    1,294,708,206.80/1,942,062,310.20 = 1,285,638,280.40/x
  3. Step 3: Cross multiply
    1,294,708,206.80x = 1,942,062,310.20 × 1,285,638,280.40
  4. Step 4: Simplify right side
    1,294,708,206.80x = 2,496,789,648,915,179,520
  5. Step 5: Solve for x
    x = 2,496,789,648,915,179,520/1,294,708,206.80
  6. Step 6: Final answer
    x = 1,928,457,420.60

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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.