Home / 218,557,814.40-301,609,893.60-120,772,670.40

Finding the Fourth Proportional to 218,557,814.40, 301,609,893.60 and 120,772,670.40

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Solution

The fourth proportional to 218,557,814.40, 301,609,893.60 and 120,772,670.40 is: 166,666,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,557,814.40 : 301,609,893.60 = 120,772,670.40 : x
  2. Step 2: Convert to fraction form
    218,557,814.40/301,609,893.60 = 120,772,670.40/x
  3. Step 3: Cross multiply
    218,557,814.40x = 301,609,893.60 × 120,772,670.40
  4. Step 4: Simplify right side
    218,557,814.40x = 36,426,232,269,131,872
  5. Step 5: Solve for x
    x = 36,426,232,269,131,872/218,557,814.40
  6. Step 6: Final answer
    x = 166,666,345.79

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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.