Home / 400,956,542.69-553,310,152.74-222,339,444.02

Finding the Fourth Proportional to 400,956,542.69, 553,310,152.74 and 222,339,444.02

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Solution

The fourth proportional to 400,956,542.69, 553,310,152.74 and 222,339,444.02 is: 306,822,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,956,542.69 : 553,310,152.74 = 222,339,444.02 : x
  2. Step 2: Convert to fraction form
    400,956,542.69/553,310,152.74 = 222,339,444.02/x
  3. Step 3: Cross multiply
    400,956,542.69x = 553,310,152.74 × 222,339,444.02
  4. Step 4: Simplify right side
    400,956,542.69x = 123,022,671,733,250,848
  5. Step 5: Solve for x
    x = 123,022,671,733,250,848/400,956,542.69
  6. Step 6: Final answer
    x = 306,822,956.19

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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.