Home / 585,081,909.46-807,412,840.76-320,758,227.40

Finding the Fourth Proportional to 585,081,909.46, 807,412,840.76 and 320,758,227.40

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Solution

The fourth proportional to 585,081,909.46, 807,412,840.76 and 320,758,227.40 is: 442,646,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,081,909.46 : 807,412,840.76 = 320,758,227.40 : x
  2. Step 2: Convert to fraction form
    585,081,909.46/807,412,840.76 = 320,758,227.40/x
  3. Step 3: Cross multiply
    585,081,909.46x = 807,412,840.76 × 320,758,227.40
  4. Step 4: Simplify right side
    585,081,909.46x = 258,984,311,582,176,032
  5. Step 5: Solve for x
    x = 258,984,311,582,176,032/585,081,909.46
  6. Step 6: Final answer
    x = 442,646,247.29

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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.