Home / 485,553,256.40-669,910,519.67-297,185,177.36

Finding the Fourth Proportional to 485,553,256.40, 669,910,519.67 and 297,185,177.36

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Solution

The fourth proportional to 485,553,256.40, 669,910,519.67 and 297,185,177.36 is: 410,021,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,553,256.40 : 669,910,519.67 = 297,185,177.36 : x
  2. Step 2: Convert to fraction form
    485,553,256.40/669,910,519.67 = 297,185,177.36/x
  3. Step 3: Cross multiply
    485,553,256.40x = 669,910,519.67 × 297,185,177.36
  4. Step 4: Simplify right side
    485,553,256.40x = 199,087,476,603,647,552
  5. Step 5: Solve for x
    x = 199,087,476,603,647,552/485,553,256.40
  6. Step 6: Final answer
    x = 410,021,916.19

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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.