Home / 315,521,738.20-472,386,812.10-315,521,738.20

Finding the Fourth Proportional to 315,521,738.20, 472,386,812.10 and 315,521,738.20

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Solution

The fourth proportional to 315,521,738.20, 472,386,812.10 and 315,521,738.20 is: 472,386,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,521,738.20 : 472,386,812.10 = 315,521,738.20 : x
  2. Step 2: Convert to fraction form
    315,521,738.20/472,386,812.10 = 315,521,738.20/x
  3. Step 3: Cross multiply
    315,521,738.20x = 472,386,812.10 × 315,521,738.20
  4. Step 4: Simplify right side
    315,521,738.20x = 149,048,308,056,548,800
  5. Step 5: Solve for x
    x = 149,048,308,056,548,800/315,521,738.20
  6. Step 6: Final answer
    x = 472,386,812.10

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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.