Home / 100,095,981.60-149,955,015.60-51,408,112.80

Finding the Fourth Proportional to 100,095,981.60, 149,955,015.60 and 51,408,112.80

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Solution

The fourth proportional to 100,095,981.60, 149,955,015.60 and 51,408,112.80 is: 77,015,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,095,981.60 : 149,955,015.60 = 51,408,112.80 : x
  2. Step 2: Convert to fraction form
    100,095,981.60/149,955,015.60 = 51,408,112.80/x
  3. Step 3: Cross multiply
    100,095,981.60x = 149,955,015.60 × 51,408,112.80
  4. Step 4: Simplify right side
    100,095,981.60x = 7,708,904,356,890,559
  5. Step 5: Solve for x
    x = 7,708,904,356,890,559/100,095,981.60
  6. Step 6: Final answer
    x = 77,015,123.22

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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.