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Finding the Fourth Proportional to 84,999,782.80, 127,287,097.80 and 67,993,670.80

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Solution

The fourth proportional to 84,999,782.80, 127,287,097.80 and 67,993,670.80 is: 101,820,460.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,999,782.80 : 127,287,097.80 = 67,993,670.80 : x
  2. Step 2: Convert to fraction form
    84,999,782.80/127,287,097.80 = 67,993,670.80/x
  3. Step 3: Cross multiply
    84,999,782.80x = 127,287,097.80 × 67,993,670.80
  4. Step 4: Simplify right side
    84,999,782.80x = 8,654,717,024,900,604
  5. Step 5: Solve for x
    x = 8,654,717,024,900,604/84,999,782.80
  6. Step 6: Final answer
    x = 101,820,460.47

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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.