Home / 315,103,685.95-472,336,664.32-185,644,658.35

Finding the Fourth Proportional to 315,103,685.95, 472,336,664.32 and 185,644,658.35

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Solution

The fourth proportional to 315,103,685.95, 472,336,664.32 and 185,644,658.35 is: 278,279,127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,103,685.95 : 472,336,664.32 = 185,644,658.35 : x
  2. Step 2: Convert to fraction form
    315,103,685.95/472,336,664.32 = 185,644,658.35/x
  3. Step 3: Cross multiply
    315,103,685.95x = 472,336,664.32 × 185,644,658.35
  4. Step 4: Simplify right side
    315,103,685.95x = 87,686,778,673,865,024
  5. Step 5: Solve for x
    x = 87,686,778,673,865,024/315,103,685.95
  6. Step 6: Final answer
    x = 278,279,127.11

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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.