Home / 353,776,910.40-531,001,288.80-217,728,014.40

Finding the Fourth Proportional to 353,776,910.40, 531,001,288.80 and 217,728,014.40

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Solution

The fourth proportional to 353,776,910.40, 531,001,288.80 and 217,728,014.40 is: 326,798,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,776,910.40 : 531,001,288.80 = 217,728,014.40 : x
  2. Step 2: Convert to fraction form
    353,776,910.40/531,001,288.80 = 217,728,014.40/x
  3. Step 3: Cross multiply
    353,776,910.40x = 531,001,288.80 × 217,728,014.40
  4. Step 4: Simplify right side
    353,776,910.40x = 115,613,856,254,264,960
  5. Step 5: Solve for x
    x = 115,613,856,254,264,960/353,776,910.40
  6. Step 6: Final answer
    x = 326,798,761.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.