Home / 820,254,368.72-1,131,958,087.80-467,848,209.80

Finding the Fourth Proportional to 820,254,368.72, 1,131,958,087.80 and 467,848,209.80

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Solution

The fourth proportional to 820,254,368.72, 1,131,958,087.80 and 467,848,209.80 is: 645,634,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,254,368.72 : 1,131,958,087.80 = 467,848,209.80 : x
  2. Step 2: Convert to fraction form
    820,254,368.72/1,131,958,087.80 = 467,848,209.80/x
  3. Step 3: Cross multiply
    820,254,368.72x = 1,131,958,087.80 × 467,848,209.80
  4. Step 4: Simplify right side
    820,254,368.72x = 529,584,564,945,861,184
  5. Step 5: Solve for x
    x = 529,584,564,945,861,184/820,254,368.72
  6. Step 6: Final answer
    x = 645,634,555.74

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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.