Home / 820,426,057.56-1,132,006,956.12-485,732,388.96

Finding the Fourth Proportional to 820,426,057.56, 1,132,006,956.12 and 485,732,388.96

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Solution

The fourth proportional to 820,426,057.56, 1,132,006,956.12 and 485,732,388.96 is: 670,203,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,426,057.56 : 1,132,006,956.12 = 485,732,388.96 : x
  2. Step 2: Convert to fraction form
    820,426,057.56/1,132,006,956.12 = 485,732,388.96/x
  3. Step 3: Cross multiply
    820,426,057.56x = 1,132,006,956.12 × 485,732,388.96
  4. Step 4: Simplify right side
    820,426,057.56x = 549,852,443,115,505,408
  5. Step 5: Solve for x
    x = 549,852,443,115,505,408/820,426,057.56
  6. Step 6: Final answer
    x = 670,203,533.94

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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.