Home / 8,378,805,789.21-12,569,500,085.46-2,856,772,419.33

Finding the Fourth Proportional to 8,378,805,789.21, 12,569,500,085.46 and 2,856,772,419.33

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Solution

The fourth proportional to 8,378,805,789.21, 12,569,500,085.46 and 2,856,772,419.33 is: 4,285,598,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,805,789.21 : 12,569,500,085.46 = 2,856,772,419.33 : x
  2. Step 2: Convert to fraction form
    8,378,805,789.21/12,569,500,085.46 = 2,856,772,419.33/x
  3. Step 3: Cross multiply
    8,378,805,789.21x = 12,569,500,085.46 × 2,856,772,419.33
  4. Step 4: Simplify right side
    8,378,805,789.21x = 35,908,201,168,908,201,984
  5. Step 5: Solve for x
    x = 35,908,201,168,908,201,984/8,378,805,789.21
  6. Step 6: Final answer
    x = 4,285,598,935.25

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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.