Home / 679,138,650.08-937,215,271.19-381,778,288.91

Finding the Fourth Proportional to 679,138,650.08, 937,215,271.19 and 381,778,288.91

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Solution

The fourth proportional to 679,138,650.08, 937,215,271.19 and 381,778,288.91 is: 526,856,250.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,138,650.08 : 937,215,271.19 = 381,778,288.91 : x
  2. Step 2: Convert to fraction form
    679,138,650.08/937,215,271.19 = 381,778,288.91/x
  3. Step 3: Cross multiply
    679,138,650.08x = 937,215,271.19 × 381,778,288.91
  4. Step 4: Simplify right side
    679,138,650.08x = 357,808,442,568,644,800
  5. Step 5: Solve for x
    x = 357,808,442,568,644,800/679,138,650.08
  6. Step 6: Final answer
    x = 526,856,250.24

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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.