Home / 509,947,822.40-764,921,733.60-164,936,325.20

Finding the Fourth Proportional to 509,947,822.40, 764,921,733.60 and 164,936,325.20

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Solution

The fourth proportional to 509,947,822.40, 764,921,733.60 and 164,936,325.20 is: 247,404,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,947,822.40 : 764,921,733.60 = 164,936,325.20 : x
  2. Step 2: Convert to fraction form
    509,947,822.40/764,921,733.60 = 164,936,325.20/x
  3. Step 3: Cross multiply
    509,947,822.40x = 764,921,733.60 × 164,936,325.20
  4. Step 4: Simplify right side
    509,947,822.40x = 126,163,379,805,597,360
  5. Step 5: Solve for x
    x = 126,163,379,805,597,360/509,947,822.40
  6. Step 6: Final answer
    x = 247,404,487.80

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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.