Home / 129,482,073.57-178,683,176.21-70,743,477.45

Finding the Fourth Proportional to 129,482,073.57, 178,683,176.21 and 70,743,477.45

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Solution

The fourth proportional to 129,482,073.57, 178,683,176.21 and 70,743,477.45 is: 97,624,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,482,073.57 : 178,683,176.21 = 70,743,477.45 : x
  2. Step 2: Convert to fraction form
    129,482,073.57/178,683,176.21 = 70,743,477.45/x
  3. Step 3: Cross multiply
    129,482,073.57x = 178,683,176.21 × 70,743,477.45
  4. Step 4: Simplify right side
    129,482,073.57x = 12,640,669,246,906,512
  5. Step 5: Solve for x
    x = 12,640,669,246,906,512/129,482,073.57
  6. Step 6: Final answer
    x = 97,624,859.55

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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.