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Finding the Fourth Proportional to 68,271,658.60, 102,390,442.86 and 26,780,968.12

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Solution

The fourth proportional to 68,271,658.60, 102,390,442.86 and 26,780,968.12 is: 40,164,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,271,658.60 : 102,390,442.86 = 26,780,968.12 : x
  2. Step 2: Convert to fraction form
    68,271,658.60/102,390,442.86 = 26,780,968.12/x
  3. Step 3: Cross multiply
    68,271,658.60x = 102,390,442.86 × 26,780,968.12
  4. Step 4: Simplify right side
    68,271,658.60x = 2,742,115,186,026,341.50
  5. Step 5: Solve for x
    x = 2,742,115,186,026,341.50/68,271,658.60
  6. Step 6: Final answer
    x = 40,164,765.91

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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.