Home / 125,880,482.39-172,456,876.16-121,162,516.66

Finding the Fourth Proportional to 125,880,482.39, 172,456,876.16 and 121,162,516.66

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Solution

The fourth proportional to 125,880,482.39, 172,456,876.16 and 121,162,516.66 is: 165,993,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,880,482.39 : 172,456,876.16 = 121,162,516.66 : x
  2. Step 2: Convert to fraction form
    125,880,482.39/172,456,876.16 = 121,162,516.66/x
  3. Step 3: Cross multiply
    125,880,482.39x = 172,456,876.16 × 121,162,516.66
  4. Step 4: Simplify right side
    125,880,482.39x = 20,895,309,130,990,996
  5. Step 5: Solve for x
    x = 20,895,309,130,990,996/125,880,482.39
  6. Step 6: Final answer
    x = 165,993,240.06

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.