Home / 7,884,047.10-11,826,070.65-7,128,219.90

Finding the Fourth Proportional to 7,884,047.10, 11,826,070.65 and 7,128,219.90

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Solution

The fourth proportional to 7,884,047.10, 11,826,070.65 and 7,128,219.90 is: 10,692,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884,047.10 : 11,826,070.65 = 7,128,219.90 : x
  2. Step 2: Convert to fraction form
    7,884,047.10/11,826,070.65 = 7,128,219.90/x
  3. Step 3: Cross multiply
    7,884,047.10x = 11,826,070.65 × 7,128,219.90
  4. Step 4: Simplify right side
    7,884,047.10x = 84,298,832,146,135.94
  5. Step 5: Solve for x
    x = 84,298,832,146,135.94/7,884,047.10
  6. Step 6: Final answer
    x = 10,692,329.85

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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.