Home / 218,557,816.40-301,609,896.36-120,772,672.40

Finding the Fourth Proportional to 218,557,816.40, 301,609,896.36 and 120,772,672.40

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Solution

The fourth proportional to 218,557,816.40, 301,609,896.36 and 120,772,672.40 is: 166,666,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,557,816.40 : 301,609,896.36 = 120,772,672.40 : x
  2. Step 2: Convert to fraction form
    218,557,816.40/301,609,896.36 = 120,772,672.40/x
  3. Step 3: Cross multiply
    218,557,816.40x = 301,609,896.36 × 120,772,672.40
  4. Step 4: Simplify right side
    218,557,816.40x = 36,426,233,205,684,232
  5. Step 5: Solve for x
    x = 36,426,233,205,684,232/218,557,816.40
  6. Step 6: Final answer
    x = 166,666,348.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.