Home / 78,088,092.80-117,020,164.80-57,456,809.60

Finding the Fourth Proportional to 78,088,092.80, 117,020,164.80 and 57,456,809.60

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Solution

The fourth proportional to 78,088,092.80, 117,020,164.80 and 57,456,809.60 is: 86,102,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,088,092.80 : 117,020,164.80 = 57,456,809.60 : x
  2. Step 2: Convert to fraction form
    78,088,092.80/117,020,164.80 = 57,456,809.60/x
  3. Step 3: Cross multiply
    78,088,092.80x = 117,020,164.80 × 57,456,809.60
  4. Step 4: Simplify right side
    78,088,092.80x = 6,723,605,328,274,222
  5. Step 5: Solve for x
    x = 6,723,605,328,274,222/78,088,092.80
  6. Step 6: Final answer
    x = 86,102,824.22

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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.