Home / 140,095,390.93-193,318,916.39-78,204,340.69

Finding the Fourth Proportional to 140,095,390.93, 193,318,916.39 and 78,204,340.69

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Solution

The fourth proportional to 140,095,390.93, 193,318,916.39 and 78,204,340.69 is: 107,914,887.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,095,390.93 : 193,318,916.39 = 78,204,340.69 : x
  2. Step 2: Convert to fraction form
    140,095,390.93/193,318,916.39 = 78,204,340.69/x
  3. Step 3: Cross multiply
    140,095,390.93x = 193,318,916.39 × 78,204,340.69
  4. Step 4: Simplify right side
    140,095,390.93x = 15,118,378,398,604,132
  5. Step 5: Solve for x
    x = 15,118,378,398,604,132/140,095,390.93
  6. Step 6: Final answer
    x = 107,914,887.84

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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.