Home / 515,108,134.80-711,034,127.04-306,263,779.22

Finding the Fourth Proportional to 515,108,134.80, 711,034,127.04 and 306,263,779.22

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Solution

The fourth proportional to 515,108,134.80, 711,034,127.04 and 306,263,779.22 is: 422,753,950.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,108,134.80 : 711,034,127.04 = 306,263,779.22 : x
  2. Step 2: Convert to fraction form
    515,108,134.80/711,034,127.04 = 306,263,779.22/x
  3. Step 3: Cross multiply
    515,108,134.80x = 711,034,127.04 × 306,263,779.22
  4. Step 4: Simplify right side
    515,108,134.80x = 217,763,998,902,293,120
  5. Step 5: Solve for x
    x = 217,763,998,902,293,120/515,108,134.80
  6. Step 6: Final answer
    x = 422,753,950.46

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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.