Home / 401,756,840.12-554,484,949.80-245,214,914.96

Finding the Fourth Proportional to 401,756,840.12, 554,484,949.80 and 245,214,914.96

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Solution

The fourth proportional to 401,756,840.12, 554,484,949.80 and 245,214,914.96 is: 338,433,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,756,840.12 : 554,484,949.80 = 245,214,914.96 : x
  2. Step 2: Convert to fraction form
    401,756,840.12/554,484,949.80 = 245,214,914.96/x
  3. Step 3: Cross multiply
    401,756,840.12x = 554,484,949.80 × 245,214,914.96
  4. Step 4: Simplify right side
    401,756,840.12x = 135,967,979,811,806,864
  5. Step 5: Solve for x
    x = 135,967,979,811,806,864/401,756,840.12
  6. Step 6: Final answer
    x = 338,433,515.58

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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.