Home / 129,220,145.48-178,325,943.72-70,482,825.92

Finding the Fourth Proportional to 129,220,145.48, 178,325,943.72 and 70,482,825.92

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Solution

The fourth proportional to 129,220,145.48, 178,325,943.72 and 70,482,825.92 is: 97,267,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,220,145.48 : 178,325,943.72 = 70,482,825.92 : x
  2. Step 2: Convert to fraction form
    129,220,145.48/178,325,943.72 = 70,482,825.92/x
  3. Step 3: Cross multiply
    129,220,145.48x = 178,325,943.72 × 70,482,825.92
  4. Step 4: Simplify right side
    129,220,145.48x = 12,568,916,448,236,478
  5. Step 5: Solve for x
    x = 12,568,916,448,236,478/129,220,145.48
  6. Step 6: Final answer
    x = 97,267,468.64

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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.