Home / 129,220,143.48-178,325,940.96-70,482,823.92

Finding the Fourth Proportional to 129,220,143.48, 178,325,940.96 and 70,482,823.92

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Solution

The fourth proportional to 129,220,143.48, 178,325,940.96 and 70,482,823.92 is: 97,267,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,220,143.48 : 178,325,940.96 = 70,482,823.92 : x
  2. Step 2: Convert to fraction form
    129,220,143.48/178,325,940.96 = 70,482,823.92/x
  3. Step 3: Cross multiply
    129,220,143.48x = 178,325,940.96 × 70,482,823.92
  4. Step 4: Simplify right side
    129,220,143.48x = 12,568,915,897,051,996
  5. Step 5: Solve for x
    x = 12,568,915,897,051,996/129,220,143.48
  6. Step 6: Final answer
    x = 97,267,465.88

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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.