Home / 144,007,840.34-198,731,343.17-77,928,331.74

Finding the Fourth Proportional to 144,007,840.34, 198,731,343.17 and 77,928,331.74

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Solution

The fourth proportional to 144,007,840.34, 198,731,343.17 and 77,928,331.74 is: 107,541,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,007,840.34 : 198,731,343.17 = 77,928,331.74 : x
  2. Step 2: Convert to fraction form
    144,007,840.34/198,731,343.17 = 77,928,331.74/x
  3. Step 3: Cross multiply
    144,007,840.34x = 198,731,343.17 × 77,928,331.74
  4. Step 4: Simplify right side
    144,007,840.34x = 15,486,802,037,297,900
  5. Step 5: Solve for x
    x = 15,486,802,037,297,900/144,007,840.34
  6. Step 6: Final answer
    x = 107,541,381.09

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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.