Home / 665,200,002.36-998,091,686.16-315,698,493.72

Finding the Fourth Proportional to 665,200,002.36, 998,091,686.16 and 315,698,493.72

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Solution

The fourth proportional to 665,200,002.36, 998,091,686.16 and 315,698,493.72 is: 473,686,170.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,200,002.36 : 998,091,686.16 = 315,698,493.72 : x
  2. Step 2: Convert to fraction form
    665,200,002.36/998,091,686.16 = 315,698,493.72/x
  3. Step 3: Cross multiply
    665,200,002.36x = 998,091,686.16 × 315,698,493.72
  4. Step 4: Simplify right side
    665,200,002.36x = 315,096,041,915,166,976
  5. Step 5: Solve for x
    x = 315,096,041,915,166,976/665,200,002.36
  6. Step 6: Final answer
    x = 473,686,170.77

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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.