Home / 38,454,511.55-53,067,221.96-20,813,411.05

Finding the Fourth Proportional to 38,454,511.55, 53,067,221.96 and 20,813,411.05

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Solution

The fourth proportional to 38,454,511.55, 53,067,221.96 and 20,813,411.05 is: 28,722,505.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454,511.55 : 53,067,221.96 = 20,813,411.05 : x
  2. Step 2: Convert to fraction form
    38,454,511.55/53,067,221.96 = 20,813,411.05/x
  3. Step 3: Cross multiply
    38,454,511.55x = 53,067,221.96 × 20,813,411.05
  4. Step 4: Simplify right side
    38,454,511.55x = 1,104,509,903,698,331.50
  5. Step 5: Solve for x
    x = 1,104,509,903,698,331.50/38,454,511.55
  6. Step 6: Final answer
    x = 28,722,505.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.