Home / 315,103,700.70-472,336,686.45-185,644,673.10

Finding the Fourth Proportional to 315,103,700.70, 472,336,686.45 and 185,644,673.10

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Solution

The fourth proportional to 315,103,700.70, 472,336,686.45 and 185,644,673.10 is: 278,279,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,103,700.70 : 472,336,686.45 = 185,644,673.10 : x
  2. Step 2: Convert to fraction form
    315,103,700.70/472,336,686.45 = 185,644,673.10/x
  3. Step 3: Cross multiply
    315,103,700.70x = 472,336,686.45 × 185,644,673.10
  4. Step 4: Simplify right side
    315,103,700.70x = 87,686,789,749,147,440
  5. Step 5: Solve for x
    x = 87,686,789,749,147,440/315,103,700.70
  6. Step 6: Final answer
    x = 278,279,149.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.