Home / 8,782,109.87-12,120,579.54-5,060,228.31

Finding the Fourth Proportional to 8,782,109.87, 12,120,579.54 and 5,060,228.31

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Solution

The fourth proportional to 8,782,109.87, 12,120,579.54 and 5,060,228.31 is: 6,983,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782,109.87 : 12,120,579.54 = 5,060,228.31 : x
  2. Step 2: Convert to fraction form
    8,782,109.87/12,120,579.54 = 5,060,228.31/x
  3. Step 3: Cross multiply
    8,782,109.87x = 12,120,579.54 × 5,060,228.31
  4. Step 4: Simplify right side
    8,782,109.87x = 61,332,899,721,914.77
  5. Step 5: Solve for x
    x = 61,332,899,721,914.77/8,782,109.87
  6. Step 6: Final answer
    x = 6,983,845.64

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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.