Home / 74,296,572.80-111,350,380.80-66,171,430.40

Finding the Fourth Proportional to 74,296,572.80, 111,350,380.80 and 66,171,430.40

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Solution

The fourth proportional to 74,296,572.80, 111,350,380.80 and 66,171,430.40 is: 99,172,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,296,572.80 : 111,350,380.80 = 66,171,430.40 : x
  2. Step 2: Convert to fraction form
    74,296,572.80/111,350,380.80 = 66,171,430.40/x
  3. Step 3: Cross multiply
    74,296,572.80x = 111,350,380.80 × 66,171,430.40
  4. Step 4: Simplify right side
    74,296,572.80x = 7,368,213,973,120,696
  5. Step 5: Solve for x
    x = 7,368,213,973,120,696/74,296,572.80
  6. Step 6: Final answer
    x = 99,172,999.45

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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.