Home / 384,189,686.10-530,181,156.78-207,977,634.54

Finding the Fourth Proportional to 384,189,686.10, 530,181,156.78 and 207,977,634.54

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Solution

The fourth proportional to 384,189,686.10, 530,181,156.78 and 207,977,634.54 is: 287,008,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,189,686.10 : 530,181,156.78 = 207,977,634.54 : x
  2. Step 2: Convert to fraction form
    384,189,686.10/530,181,156.78 = 207,977,634.54/x
  3. Step 3: Cross multiply
    384,189,686.10x = 530,181,156.78 × 207,977,634.54
  4. Step 4: Simplify right side
    384,189,686.10x = 110,265,822,864,785,280
  5. Step 5: Solve for x
    x = 110,265,822,864,785,280/384,189,686.10
  6. Step 6: Final answer
    x = 287,008,805.43

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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.