Home / 139,914,203.54-193,081,858.53-78,038,530.34

Finding the Fourth Proportional to 139,914,203.54, 193,081,858.53 and 78,038,530.34

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Solution

The fourth proportional to 139,914,203.54, 193,081,858.53 and 78,038,530.34 is: 107,693,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,914,203.54 : 193,081,858.53 = 78,038,530.34 : x
  2. Step 2: Convert to fraction form
    139,914,203.54/193,081,858.53 = 78,038,530.34/x
  3. Step 3: Cross multiply
    139,914,203.54x = 193,081,858.53 × 78,038,530.34
  4. Step 4: Simplify right side
    139,914,203.54x = 15,067,824,474,996,994
  5. Step 5: Solve for x
    x = 15,067,824,474,996,994/139,914,203.54
  6. Step 6: Final answer
    x = 107,693,315.57

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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.