Home / 140,808,625.47-194,312,221.89-78,084,564.47

Finding the Fourth Proportional to 140,808,625.47, 194,312,221.89 and 78,084,564.47

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Solution

The fourth proportional to 140,808,625.47, 194,312,221.89 and 78,084,564.47 is: 107,754,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,808,625.47 : 194,312,221.89 = 78,084,564.47 : x
  2. Step 2: Convert to fraction form
    140,808,625.47/194,312,221.89 = 78,084,564.47/x
  3. Step 3: Cross multiply
    140,808,625.47x = 194,312,221.89 × 78,084,564.47
  4. Step 4: Simplify right side
    140,808,625.47x = 15,172,785,216,942,942
  5. Step 5: Solve for x
    x = 15,172,785,216,942,942/140,808,625.47
  6. Step 6: Final answer
    x = 107,754,657.55

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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.