Home / 72,362,346.82-99,860,662.65-39,322,589.38

Finding the Fourth Proportional to 72,362,346.82, 99,860,662.65 and 39,322,589.38

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Solution

The fourth proportional to 72,362,346.82, 99,860,662.65 and 39,322,589.38 is: 54,265,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,362,346.82 : 99,860,662.65 = 39,322,589.38 : x
  2. Step 2: Convert to fraction form
    72,362,346.82/99,860,662.65 = 39,322,589.38/x
  3. Step 3: Cross multiply
    72,362,346.82x = 99,860,662.65 × 39,322,589.38
  4. Step 4: Simplify right side
    72,362,346.82x = 3,926,779,832,600,653
  5. Step 5: Solve for x
    x = 3,926,779,832,600,653/72,362,346.82
  6. Step 6: Final answer
    x = 54,265,512.45

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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.