Home / 384,038,778.13-529,974,832.82-207,826,726.78

Finding the Fourth Proportional to 384,038,778.13, 529,974,832.82 and 207,826,726.78

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Solution

The fourth proportional to 384,038,778.13, 529,974,832.82 and 207,826,726.78 is: 286,801,596.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,038,778.13 : 529,974,832.82 = 207,826,726.78 : x
  2. Step 2: Convert to fraction form
    384,038,778.13/529,974,832.82 = 207,826,726.78/x
  3. Step 3: Cross multiply
    384,038,778.13x = 529,974,832.82 × 207,826,726.78
  4. Step 4: Simplify right side
    384,038,778.13x = 110,142,934,778,394,240
  5. Step 5: Solve for x
    x = 110,142,934,778,394,240/384,038,778.13
  6. Step 6: Final answer
    x = 286,801,596.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.