Home / 115,944,619.70-159,936,752.37-72,408,972.98

Finding the Fourth Proportional to 115,944,619.70, 159,936,752.37 and 72,408,972.98

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Solution

The fourth proportional to 115,944,619.70, 159,936,752.37 and 72,408,972.98 is: 99,882,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,944,619.70 : 159,936,752.37 = 72,408,972.98 : x
  2. Step 2: Convert to fraction form
    115,944,619.70/159,936,752.37 = 72,408,972.98/x
  3. Step 3: Cross multiply
    115,944,619.70x = 159,936,752.37 × 72,408,972.98
  4. Step 4: Simplify right side
    115,944,619.70x = 11,580,855,980,868,282
  5. Step 5: Solve for x
    x = 11,580,855,980,868,282/115,944,619.70
  6. Step 6: Final answer
    x = 99,882,650.97

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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.