Home / 808,217,999.80-1,212,326,999.70-349,052,975.80

Finding the Fourth Proportional to 808,217,999.80, 1,212,326,999.70 and 349,052,975.80

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Solution

The fourth proportional to 808,217,999.80, 1,212,326,999.70 and 349,052,975.80 is: 523,579,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,217,999.80 : 1,212,326,999.70 = 349,052,975.80 : x
  2. Step 2: Convert to fraction form
    808,217,999.80/1,212,326,999.70 = 349,052,975.80/x
  3. Step 3: Cross multiply
    808,217,999.80x = 1,212,326,999.70 × 349,052,975.80
  4. Step 4: Simplify right side
    808,217,999.80x = 423,166,346,887,970,752
  5. Step 5: Solve for x
    x = 423,166,346,887,970,752/808,217,999.80
  6. Step 6: Final answer
    x = 523,579,463.70

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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.