Home / 78,088,093.80-117,020,166.30-57,456,810.60

Finding the Fourth Proportional to 78,088,093.80, 117,020,166.30 and 57,456,810.60

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Solution

The fourth proportional to 78,088,093.80, 117,020,166.30 and 57,456,810.60 is: 86,102,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,088,093.80 : 117,020,166.30 = 57,456,810.60 : x
  2. Step 2: Convert to fraction form
    78,088,093.80/117,020,166.30 = 57,456,810.60/x
  3. Step 3: Cross multiply
    78,088,093.80x = 117,020,166.30 × 57,456,810.60
  4. Step 4: Simplify right side
    78,088,093.80x = 6,723,605,531,479,603
  5. Step 5: Solve for x
    x = 6,723,605,531,479,603/78,088,093.80
  6. Step 6: Final answer
    x = 86,102,825.72

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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.