Home / 315,102,908.20-472,335,497.70-185,643,880.60

Finding the Fourth Proportional to 315,102,908.20, 472,335,497.70 and 185,643,880.60

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Solution

The fourth proportional to 315,102,908.20, 472,335,497.70 and 185,643,880.60 is: 278,277,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,102,908.20 : 472,335,497.70 = 185,643,880.60 : x
  2. Step 2: Convert to fraction form
    315,102,908.20/472,335,497.70 = 185,643,880.60/x
  3. Step 3: Cross multiply
    315,102,908.20x = 472,335,497.70 × 185,643,880.60
  4. Step 4: Simplify right side
    315,102,908.20x = 87,686,194,738,160,368
  5. Step 5: Solve for x
    x = 87,686,194,738,160,368/315,102,908.20
  6. Step 6: Final answer
    x = 278,277,960.81

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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.