Home / 521,760,009.60-782,640,014.40-349,767,331.20

Finding the Fourth Proportional to 521,760,009.60, 782,640,014.40 and 349,767,331.20

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Solution

The fourth proportional to 521,760,009.60, 782,640,014.40 and 349,767,331.20 is: 524,650,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,760,009.60 : 782,640,014.40 = 349,767,331.20 : x
  2. Step 2: Convert to fraction form
    521,760,009.60/782,640,014.40 = 349,767,331.20/x
  3. Step 3: Cross multiply
    521,760,009.60x = 782,640,014.40 × 349,767,331.20
  4. Step 4: Simplify right side
    521,760,009.60x = 273,741,909,127,017,536
  5. Step 5: Solve for x
    x = 273,741,909,127,017,536/521,760,009.60
  6. Step 6: Final answer
    x = 524,650,996.80

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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.