Home / 386,179,622.40-579,269,433.60-222,920,947.20

Finding the Fourth Proportional to 386,179,622.40, 579,269,433.60 and 222,920,947.20

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Solution

The fourth proportional to 386,179,622.40, 579,269,433.60 and 222,920,947.20 is: 334,381,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,179,622.40 : 579,269,433.60 = 222,920,947.20 : x
  2. Step 2: Convert to fraction form
    386,179,622.40/579,269,433.60 = 222,920,947.20/x
  3. Step 3: Cross multiply
    386,179,622.40x = 579,269,433.60 × 222,920,947.20
  4. Step 4: Simplify right side
    386,179,622.40x = 129,131,290,822,119,504
  5. Step 5: Solve for x
    x = 129,131,290,822,119,504/386,179,622.40
  6. Step 6: Final answer
    x = 334,381,420.80

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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.