Home / 128,317,710.54-192,399,699.55-40,841,442.08

Finding the Fourth Proportional to 128,317,710.54, 192,399,699.55 and 40,841,442.08

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Solution

The fourth proportional to 128,317,710.54, 192,399,699.55 and 40,841,442.08 is: 61,237,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,710.54 : 192,399,699.55 = 40,841,442.08 : x
  2. Step 2: Convert to fraction form
    128,317,710.54/192,399,699.55 = 40,841,442.08/x
  3. Step 3: Cross multiply
    128,317,710.54x = 192,399,699.55 × 40,841,442.08
  4. Step 4: Simplify right side
    128,317,710.54x = 7,857,881,185,380,727
  5. Step 5: Solve for x
    x = 7,857,881,185,380,727/128,317,710.54
  6. Step 6: Final answer
    x = 61,237,697.84

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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.