Home / 72,120,126.51-99,527,622.89-41,183,174.43

Finding the Fourth Proportional to 72,120,126.51, 99,527,622.89 and 41,183,174.43

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Solution

The fourth proportional to 72,120,126.51, 99,527,622.89 and 41,183,174.43 is: 56,833,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,120,126.51 : 99,527,622.89 = 41,183,174.43 : x
  2. Step 2: Convert to fraction form
    72,120,126.51/99,527,622.89 = 41,183,174.43/x
  3. Step 3: Cross multiply
    72,120,126.51x = 99,527,622.89 × 41,183,174.43
  4. Step 4: Simplify right side
    72,120,126.51x = 4,098,863,453,876,215
  5. Step 5: Solve for x
    x = 4,098,863,453,876,215/72,120,126.51
  6. Step 6: Final answer
    x = 56,833,836.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.