Home / 389,094,992.31-536,950,460.25-212,883,697.83

Finding the Fourth Proportional to 389,094,992.31, 536,950,460.25 and 212,883,697.83

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Solution

The fourth proportional to 389,094,992.31, 536,950,460.25 and 212,883,697.83 is: 293,779,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,094,992.31 : 536,950,460.25 = 212,883,697.83 : x
  2. Step 2: Convert to fraction form
    389,094,992.31/536,950,460.25 = 212,883,697.83/x
  3. Step 3: Cross multiply
    389,094,992.31x = 536,950,460.25 × 212,883,697.83
  4. Step 4: Simplify right side
    389,094,992.31x = 114,307,999,529,540,432
  5. Step 5: Solve for x
    x = 114,307,999,529,540,432/389,094,992.31
  6. Step 6: Final answer
    x = 293,779,158.79

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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.