Home / 85,206,646.20-127,809,969.30-71,601,756.60

Finding the Fourth Proportional to 85,206,646.20, 127,809,969.30 and 71,601,756.60

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Solution

The fourth proportional to 85,206,646.20, 127,809,969.30 and 71,601,756.60 is: 107,402,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,206,646.20 : 127,809,969.30 = 71,601,756.60 : x
  2. Step 2: Convert to fraction form
    85,206,646.20/127,809,969.30 = 71,601,756.60/x
  3. Step 3: Cross multiply
    85,206,646.20x = 127,809,969.30 × 71,601,756.60
  4. Step 4: Simplify right side
    85,206,646.20x = 9,151,418,312,872,072
  5. Step 5: Solve for x
    x = 9,151,418,312,872,072/85,206,646.20
  6. Step 6: Final answer
    x = 107,402,634.90

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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.