Home / 377,125,221.52-520,478,112.42-228,441,980.05

Finding the Fourth Proportional to 377,125,221.52, 520,478,112.42 and 228,441,980.05

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Solution

The fourth proportional to 377,125,221.52, 520,478,112.42 and 228,441,980.05 is: 315,277,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,125,221.52 : 520,478,112.42 = 228,441,980.05 : x
  2. Step 2: Convert to fraction form
    377,125,221.52/520,478,112.42 = 228,441,980.05/x
  3. Step 3: Cross multiply
    377,125,221.52x = 520,478,112.42 × 228,441,980.05
  4. Step 4: Simplify right side
    377,125,221.52x = 118,899,050,572,610,112
  5. Step 5: Solve for x
    x = 118,899,050,572,610,112/377,125,221.52
  6. Step 6: Final answer
    x = 315,277,376.82

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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.