Home / 407,876,136.40-611,814,204.60-343,306,054.90

Finding the Fourth Proportional to 407,876,136.40, 611,814,204.60 and 343,306,054.90

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Solution

The fourth proportional to 407,876,136.40, 611,814,204.60 and 343,306,054.90 is: 514,959,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,876,136.40 : 611,814,204.60 = 343,306,054.90 : x
  2. Step 2: Convert to fraction form
    407,876,136.40/611,814,204.60 = 343,306,054.90/x
  3. Step 3: Cross multiply
    407,876,136.40x = 611,814,204.60 × 343,306,054.90
  4. Step 4: Simplify right side
    407,876,136.40x = 210,039,520,913,007,424
  5. Step 5: Solve for x
    x = 210,039,520,913,007,424/407,876,136.40
  6. Step 6: Final answer
    x = 514,959,082.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.