Home / 105,434,167.71-158,161,715.17-38,978,015.45

Finding the Fourth Proportional to 105,434,167.71, 158,161,715.17 and 38,978,015.45

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Solution

The fourth proportional to 105,434,167.71, 158,161,715.17 and 38,978,015.45 is: 58,470,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,434,167.71 : 158,161,715.17 = 38,978,015.45 : x
  2. Step 2: Convert to fraction form
    105,434,167.71/158,161,715.17 = 38,978,015.45/x
  3. Step 3: Cross multiply
    105,434,167.71x = 158,161,715.17 × 38,978,015.45
  4. Step 4: Simplify right side
    105,434,167.71x = 6,164,829,777,494,759
  5. Step 5: Solve for x
    x = 6,164,829,777,494,759/105,434,167.71
  6. Step 6: Final answer
    x = 58,470,891.47

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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.