Home / 215,275,609.86-323,038,740.84-90,770,428.86

Finding the Fourth Proportional to 215,275,609.86, 323,038,740.84 and 90,770,428.86

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Solution

The fourth proportional to 215,275,609.86, 323,038,740.84 and 90,770,428.86 is: 136,208,486.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,275,609.86 : 323,038,740.84 = 90,770,428.86 : x
  2. Step 2: Convert to fraction form
    215,275,609.86/323,038,740.84 = 90,770,428.86/x
  3. Step 3: Cross multiply
    215,275,609.86x = 323,038,740.84 × 90,770,428.86
  4. Step 4: Simplify right side
    215,275,609.86x = 29,322,365,044,441,196
  5. Step 5: Solve for x
    x = 29,322,365,044,441,196/215,275,609.86
  6. Step 6: Final answer
    x = 136,208,486.71

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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.