Home / 7,884,046.60-11,826,069.90-7,128,219.40

Finding the Fourth Proportional to 7,884,046.60, 11,826,069.90 and 7,128,219.40

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Solution

The fourth proportional to 7,884,046.60, 11,826,069.90 and 7,128,219.40 is: 10,692,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884,046.60 : 11,826,069.90 = 7,128,219.40 : x
  2. Step 2: Convert to fraction form
    7,884,046.60/11,826,069.90 = 7,128,219.40/x
  3. Step 3: Cross multiply
    7,884,046.60x = 11,826,069.90 × 7,128,219.40
  4. Step 4: Simplify right side
    7,884,046.60x = 84,298,820,886,936.06
  5. Step 5: Solve for x
    x = 84,298,820,886,936.06/7,884,046.60
  6. Step 6: Final answer
    x = 10,692,329.10

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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.