Home / 399,298,579.05-551,021,868-223,087,899.36

Finding the Fourth Proportional to 399,298,579.05, 551,021,868 and 223,087,899.36

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Solution

The fourth proportional to 399,298,579.05, 551,021,868 and 223,087,899.36 is: 307,855,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,298,579.05 : 551,021,868 = 223,087,899.36 : x
  2. Step 2: Convert to fraction form
    399,298,579.05/551,021,868 = 223,087,899.36/x
  3. Step 3: Cross multiply
    399,298,579.05x = 551,021,868 × 223,087,899.36
  4. Step 4: Simplify right side
    399,298,579.05x = 122,926,311,033,543,216
  5. Step 5: Solve for x
    x = 122,926,311,033,543,216/399,298,579.05
  6. Step 6: Final answer
    x = 307,855,618.53

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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.