Home / 518,498,076.10-778,045,712.55-195,613,672.90

Finding the Fourth Proportional to 518,498,076.10, 778,045,712.55 and 195,613,672.90

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Solution

The fourth proportional to 518,498,076.10, 778,045,712.55 and 195,613,672.90 is: 293,533,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,498,076.10 : 778,045,712.55 = 195,613,672.90 : x
  2. Step 2: Convert to fraction form
    518,498,076.10/778,045,712.55 = 195,613,672.90/x
  3. Step 3: Cross multiply
    518,498,076.10x = 778,045,712.55 × 195,613,672.90
  4. Step 4: Simplify right side
    518,498,076.10x = 152,196,379,516,003,136
  5. Step 5: Solve for x
    x = 152,196,379,516,003,136/518,498,076.10
  6. Step 6: Final answer
    x = 293,533,161.51

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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.