Home / 409,576,511.60-614,364,767.40-136,947,278.60

Finding the Fourth Proportional to 409,576,511.60, 614,364,767.40 and 136,947,278.60

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Solution

The fourth proportional to 409,576,511.60, 614,364,767.40 and 136,947,278.60 is: 205,420,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,576,511.60 : 614,364,767.40 = 136,947,278.60 : x
  2. Step 2: Convert to fraction form
    409,576,511.60/614,364,767.40 = 136,947,278.60/x
  3. Step 3: Cross multiply
    409,576,511.60x = 614,364,767.40 × 136,947,278.60
  4. Step 4: Simplify right side
    409,576,511.60x = 84,135,582,963,151,984
  5. Step 5: Solve for x
    x = 84,135,582,963,151,984/409,576,511.60
  6. Step 6: Final answer
    x = 205,420,917.90

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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.