Home / 72,770,666.40-109,155,999.60-36,384,672.60

Finding the Fourth Proportional to 72,770,666.40, 109,155,999.60 and 36,384,672.60

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Solution

The fourth proportional to 72,770,666.40, 109,155,999.60 and 36,384,672.60 is: 54,577,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,770,666.40 : 109,155,999.60 = 36,384,672.60 : x
  2. Step 2: Convert to fraction form
    72,770,666.40/109,155,999.60 = 36,384,672.60/x
  3. Step 3: Cross multiply
    72,770,666.40x = 109,155,999.60 × 36,384,672.60
  4. Step 4: Simplify right side
    72,770,666.40x = 3,971,605,307,771,731
  5. Step 5: Solve for x
    x = 3,971,605,307,771,731/72,770,666.40
  6. Step 6: Final answer
    x = 54,577,008.90

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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.