Home / 72,250,739.24-99,706,072.16-39,210,979.82

Finding the Fourth Proportional to 72,250,739.24, 99,706,072.16 and 39,210,979.82

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Solution

The fourth proportional to 72,250,739.24, 99,706,072.16 and 39,210,979.82 is: 54,111,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,250,739.24 : 99,706,072.16 = 39,210,979.82 : x
  2. Step 2: Convert to fraction form
    72,250,739.24/99,706,072.16 = 39,210,979.82/x
  3. Step 3: Cross multiply
    72,250,739.24x = 99,706,072.16 × 39,210,979.82
  4. Step 4: Simplify right side
    72,250,739.24x = 3,909,572,783,397,223.50
  5. Step 5: Solve for x
    x = 3,909,572,783,397,223.50/72,250,739.24
  6. Step 6: Final answer
    x = 54,111,180.38

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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.