Home / 485,553,254.15-669,910,516.56-297,185,175.11

Finding the Fourth Proportional to 485,553,254.15, 669,910,516.56 and 297,185,175.11

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Solution

The fourth proportional to 485,553,254.15, 669,910,516.56 and 297,185,175.11 is: 410,021,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,553,254.15 : 669,910,516.56 = 297,185,175.11 : x
  2. Step 2: Convert to fraction form
    485,553,254.15/669,910,516.56 = 297,185,175.11/x
  3. Step 3: Cross multiply
    485,553,254.15x = 669,910,516.56 × 297,185,175.11
  4. Step 4: Simplify right side
    485,553,254.15x = 199,087,474,173,588,928
  5. Step 5: Solve for x
    x = 199,087,474,173,588,928/485,553,254.15
  6. Step 6: Final answer
    x = 410,021,913.09

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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.