Home / 315,157,003.92-472,752,747.10-130,943,105.64

Finding the Fourth Proportional to 315,157,003.92, 472,752,747.10 and 130,943,105.64

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Solution

The fourth proportional to 315,157,003.92, 472,752,747.10 and 130,943,105.64 is: 196,421,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,157,003.92 : 472,752,747.10 = 130,943,105.64 : x
  2. Step 2: Convert to fraction form
    315,157,003.92/472,752,747.10 = 130,943,105.64/x
  3. Step 3: Cross multiply
    315,157,003.92x = 472,752,747.10 × 130,943,105.64
  4. Step 4: Simplify right side
    315,157,003.92x = 61,903,712,905,115,504
  5. Step 5: Solve for x
    x = 61,903,712,905,115,504/315,157,003.92
  6. Step 6: Final answer
    x = 196,421,821.93

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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.