Home / 208,530,218.60-312,795,327.90-55,191,775.40

Finding the Fourth Proportional to 208,530,218.60, 312,795,327.90 and 55,191,775.40

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Solution

The fourth proportional to 208,530,218.60, 312,795,327.90 and 55,191,775.40 is: 82,787,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,530,218.60 : 312,795,327.90 = 55,191,775.40 : x
  2. Step 2: Convert to fraction form
    208,530,218.60/312,795,327.90 = 55,191,775.40/x
  3. Step 3: Cross multiply
    208,530,218.60x = 312,795,327.90 × 55,191,775.40
  4. Step 4: Simplify right side
    208,530,218.60x = 17,263,729,483,626,152
  5. Step 5: Solve for x
    x = 17,263,729,483,626,152/208,530,218.60
  6. Step 6: Final answer
    x = 82,787,663.10

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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.