Home / 389,770,821.45-537,751,316.19-222,386,835.49

Finding the Fourth Proportional to 389,770,821.45, 537,751,316.19 and 222,386,835.49

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Solution

The fourth proportional to 389,770,821.45, 537,751,316.19 and 222,386,835.49 is: 306,818,281.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,770,821.45 : 537,751,316.19 = 222,386,835.49 : x
  2. Step 2: Convert to fraction form
    389,770,821.45/537,751,316.19 = 222,386,835.49/x
  3. Step 3: Cross multiply
    389,770,821.45x = 537,751,316.19 × 222,386,835.49
  4. Step 4: Simplify right side
    389,770,821.45x = 119,588,813,487,566,080
  5. Step 5: Solve for x
    x = 119,588,813,487,566,080/389,770,821.45
  6. Step 6: Final answer
    x = 306,818,281.17

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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.