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Finding the Fourth Proportional to 85,293,051.60, 127,750,620.60 and 73,955,643.60

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Solution

The fourth proportional to 85,293,051.60, 127,750,620.60 and 73,955,643.60 is: 110,769,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,051.60 : 127,750,620.60 = 73,955,643.60 : x
  2. Step 2: Convert to fraction form
    85,293,051.60/127,750,620.60 = 73,955,643.60/x
  3. Step 3: Cross multiply
    85,293,051.60x = 127,750,620.60 × 73,955,643.60
  4. Step 4: Simplify right side
    85,293,051.60x = 9,447,879,366,772,416
  5. Step 5: Solve for x
    x = 9,447,879,366,772,416/85,293,051.60
  6. Step 6: Final answer
    x = 110,769,625.30

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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.