Home / 129,180,938.84-178,274,000.09-70,446,817.43

Finding the Fourth Proportional to 129,180,938.84, 178,274,000.09 and 70,446,817.43

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Solution

The fourth proportional to 129,180,938.84, 178,274,000.09 and 70,446,817.43 is: 97,218,955.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,180,938.84 : 178,274,000.09 = 70,446,817.43 : x
  2. Step 2: Convert to fraction form
    129,180,938.84/178,274,000.09 = 70,446,817.43/x
  3. Step 3: Cross multiply
    129,180,938.84x = 178,274,000.09 × 70,446,817.43
  4. Step 4: Simplify right side
    129,180,938.84x = 12,558,835,936,503,802
  5. Step 5: Solve for x
    x = 12,558,835,936,503,802/129,180,938.84
  6. Step 6: Final answer
    x = 97,218,955.44

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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.