Home / 85,324,605.20-127,986,907.80-51,228,400.40

Finding the Fourth Proportional to 85,324,605.20, 127,986,907.80 and 51,228,400.40

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Solution

The fourth proportional to 85,324,605.20, 127,986,907.80 and 51,228,400.40 is: 76,842,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,324,605.20 : 127,986,907.80 = 51,228,400.40 : x
  2. Step 2: Convert to fraction form
    85,324,605.20/127,986,907.80 = 51,228,400.40/x
  3. Step 3: Cross multiply
    85,324,605.20x = 127,986,907.80 × 51,228,400.40
  4. Step 4: Simplify right side
    85,324,605.20x = 6,556,564,558,736,283
  5. Step 5: Solve for x
    x = 6,556,564,558,736,283/85,324,605.20
  6. Step 6: Final answer
    x = 76,842,600.60

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1.5x scale

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.