Home / 72,833,888.61-100,509,593.18-39,793,428.09

Finding the Fourth Proportional to 72,833,888.61, 100,509,593.18 and 39,793,428.09

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Solution

The fourth proportional to 72,833,888.61, 100,509,593.18 and 39,793,428.09 is: 54,914,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,833,888.61 : 100,509,593.18 = 39,793,428.09 : x
  2. Step 2: Convert to fraction form
    72,833,888.61/100,509,593.18 = 39,793,428.09/x
  3. Step 3: Cross multiply
    72,833,888.61x = 100,509,593.18 × 39,793,428.09
  4. Step 4: Simplify right side
    72,833,888.61x = 3,999,621,268,364,517.50
  5. Step 5: Solve for x
    x = 3,999,621,268,364,517.50/72,833,888.61
  6. Step 6: Final answer
    x = 54,914,289.83

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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.