Home / 389,613,572.74-537,517,138.87-222,359,127.06

Finding the Fourth Proportional to 389,613,572.74, 537,517,138.87 and 222,359,127.06

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Solution

The fourth proportional to 389,613,572.74, 537,517,138.87 and 222,359,127.06 is: 306,770,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,613,572.74 : 537,517,138.87 = 222,359,127.06 : x
  2. Step 2: Convert to fraction form
    389,613,572.74/537,517,138.87 = 222,359,127.06/x
  3. Step 3: Cross multiply
    389,613,572.74x = 537,517,138.87 × 222,359,127.06
  4. Step 4: Simplify right side
    389,613,572.74x = 119,521,841,778,922,000
  5. Step 5: Solve for x
    x = 119,521,841,778,922,000/389,613,572.74
  6. Step 6: Final answer
    x = 306,770,220.91

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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.