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Finding the Fourth Proportional to 72,501,881,010.15, 108,752,821,515.24 and 72,501,881,010.15

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Solution

The fourth proportional to 72,501,881,010.15, 108,752,821,515.24 and 72,501,881,010.15 is: 108,752,821,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,501,881,010.15 : 108,752,821,515.24 = 72,501,881,010.15 : x
  2. Step 2: Convert to fraction form
    72,501,881,010.15/108,752,821,515.24 = 72,501,881,010.15/x
  3. Step 3: Cross multiply
    72,501,881,010.15x = 108,752,821,515.24 × 72,501,881,010.15
  4. Step 4: Simplify right side
    72,501,881,010.15x = 7,884,784,125,016,010,653,696
  5. Step 5: Solve for x
    x = 7,884,784,125,016,010,653,696/72,501,881,010.15
  6. Step 6: Final answer
    x = 108,752,821,515.24

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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.