Home / 129,482,089.52-178,683,172.04-70,743,490.43

Finding the Fourth Proportional to 129,482,089.52, 178,683,172.04 and 70,743,490.43

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Solution

The fourth proportional to 129,482,089.52, 178,683,172.04 and 70,743,490.43 is: 97,624,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,482,089.52 : 178,683,172.04 = 70,743,490.43 : x
  2. Step 2: Convert to fraction form
    129,482,089.52/178,683,172.04 = 70,743,490.43/x
  3. Step 3: Cross multiply
    129,482,089.52x = 178,683,172.04 × 70,743,490.43
  4. Step 4: Simplify right side
    129,482,089.52x = 12,640,671,270,099,646
  5. Step 5: Solve for x
    x = 12,640,671,270,099,646/129,482,089.52
  6. Step 6: Final answer
    x = 97,624,863.16

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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.