Home / 129,482,056.82-178,683,153.10-70,743,460.70

Finding the Fourth Proportional to 129,482,056.82, 178,683,153.10 and 70,743,460.70

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Solution

The fourth proportional to 129,482,056.82, 178,683,153.10 and 70,743,460.70 is: 97,624,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,482,056.82 : 178,683,153.10 = 70,743,460.70 : x
  2. Step 2: Convert to fraction form
    129,482,056.82/178,683,153.10 = 70,743,460.70/x
  3. Step 3: Cross multiply
    129,482,056.82x = 178,683,153.10 × 70,743,460.70
  4. Step 4: Simplify right side
    129,482,056.82x = 12,640,664,618,011,658
  5. Step 5: Solve for x
    x = 12,640,664,618,011,658/129,482,056.82
  6. Step 6: Final answer
    x = 97,624,836.44

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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.