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Finding the Fourth Proportional to 78,489,275.04, 117,734,437.44 and 27,371,095.20

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Solution

The fourth proportional to 78,489,275.04, 117,734,437.44 and 27,371,095.20 is: 41,056,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,489,275.04 : 117,734,437.44 = 27,371,095.20 : x
  2. Step 2: Convert to fraction form
    78,489,275.04/117,734,437.44 = 27,371,095.20/x
  3. Step 3: Cross multiply
    78,489,275.04x = 117,734,437.44 × 27,371,095.20
  4. Step 4: Simplify right side
    78,489,275.04x = 3,222,520,495,488,684
  5. Step 5: Solve for x
    x = 3,222,520,495,488,684/78,489,275.04
  6. Step 6: Final answer
    x = 41,056,825.84

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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.