Home / 72,301,428.34-99,775,608.42-39,261,382.36

Finding the Fourth Proportional to 72,301,428.34, 99,775,608.42 and 39,261,382.36

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Solution

The fourth proportional to 72,301,428.34, 99,775,608.42 and 39,261,382.36 is: 54,180,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,301,428.34 : 99,775,608.42 = 39,261,382.36 : x
  2. Step 2: Convert to fraction form
    72,301,428.34/99,775,608.42 = 39,261,382.36/x
  3. Step 3: Cross multiply
    72,301,428.34x = 99,775,608.42 × 39,261,382.36
  4. Step 4: Simplify right side
    72,301,428.34x = 3,917,328,312,379,255.50
  5. Step 5: Solve for x
    x = 3,917,328,312,379,255.50/72,301,428.34
  6. Step 6: Final answer
    x = 54,180,510.71

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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.