Home / 129,482,072.57-178,683,174.83-70,743,476.45

Finding the Fourth Proportional to 129,482,072.57, 178,683,174.83 and 70,743,476.45

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Solution

The fourth proportional to 129,482,072.57, 178,683,174.83 and 70,743,476.45 is: 97,624,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,482,072.57 : 178,683,174.83 = 70,743,476.45 : x
  2. Step 2: Convert to fraction form
    129,482,072.57/178,683,174.83 = 70,743,476.45/x
  3. Step 3: Cross multiply
    129,482,072.57x = 178,683,174.83 × 70,743,476.45
  4. Step 4: Simplify right side
    129,482,072.57x = 12,640,668,969,880,780
  5. Step 5: Solve for x
    x = 12,640,668,969,880,780/129,482,072.57
  6. Step 6: Final answer
    x = 97,624,858.17

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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.