Home / 408,434,451.36-612,657,008.46-135,805,218.36

Finding the Fourth Proportional to 408,434,451.36, 612,657,008.46 and 135,805,218.36

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Solution

The fourth proportional to 408,434,451.36, 612,657,008.46 and 135,805,218.36 is: 203,709,600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,434,451.36 : 612,657,008.46 = 135,805,218.36 : x
  2. Step 2: Convert to fraction form
    408,434,451.36/612,657,008.46 = 135,805,218.36/x
  3. Step 3: Cross multiply
    408,434,451.36x = 612,657,008.46 × 135,805,218.36
  4. Step 4: Simplify right side
    408,434,451.36x = 83,202,018,813,694,688
  5. Step 5: Solve for x
    x = 83,202,018,813,694,688/408,434,451.36
  6. Step 6: Final answer
    x = 203,709,600.25

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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.