Home / 666,010,643.46-998,671,741.11-292,365,600.90

Finding the Fourth Proportional to 666,010,643.46, 998,671,741.11 and 292,365,600.90

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Solution

The fourth proportional to 666,010,643.46, 998,671,741.11 and 292,365,600.90 is: 438,397,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,010,643.46 : 998,671,741.11 = 292,365,600.90 : x
  2. Step 2: Convert to fraction form
    666,010,643.46/998,671,741.11 = 292,365,600.90/x
  3. Step 3: Cross multiply
    666,010,643.46x = 998,671,741.11 × 292,365,600.90
  4. Step 4: Simplify right side
    666,010,643.46x = 291,977,263,691,474,368
  5. Step 5: Solve for x
    x = 291,977,263,691,474,368/666,010,643.46
  6. Step 6: Final answer
    x = 438,397,293.73

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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.