Home / 2,688,947.60-4,033,421.40-2,670,285.20

Finding the Fourth Proportional to 2,688,947.60, 4,033,421.40 and 2,670,285.20

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Solution

The fourth proportional to 2,688,947.60, 4,033,421.40 and 2,670,285.20 is: 4,005,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,947.60 : 4,033,421.40 = 2,670,285.20 : x
  2. Step 2: Convert to fraction form
    2,688,947.60/4,033,421.40 = 2,670,285.20/x
  3. Step 3: Cross multiply
    2,688,947.60x = 4,033,421.40 × 2,670,285.20
  4. Step 4: Simplify right side
    2,688,947.60x = 10,770,385,469,783.28
  5. Step 5: Solve for x
    x = 10,770,385,469,783.28/2,688,947.60
  6. Step 6: Final answer
    x = 4,005,427.80

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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.