Home / 438,151,886.34-656,184,493.81-253,530,278.02

Finding the Fourth Proportional to 438,151,886.34, 656,184,493.81 and 253,530,278.02

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Solution

The fourth proportional to 438,151,886.34, 656,184,493.81 and 253,530,278.02 is: 379,691,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,151,886.34 : 656,184,493.81 = 253,530,278.02 : x
  2. Step 2: Convert to fraction form
    438,151,886.34/656,184,493.81 = 253,530,278.02/x
  3. Step 3: Cross multiply
    438,151,886.34x = 656,184,493.81 × 253,530,278.02
  4. Step 4: Simplify right side
    438,151,886.34x = 166,362,637,148,062,272
  5. Step 5: Solve for x
    x = 166,362,637,148,062,272/438,151,886.34
  6. Step 6: Final answer
    x = 379,691,705.86

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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.