Home / 278,316,186.60-417,474,279.90-262,443,815.40

Finding the Fourth Proportional to 278,316,186.60, 417,474,279.90 and 262,443,815.40

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Solution

The fourth proportional to 278,316,186.60, 417,474,279.90 and 262,443,815.40 is: 393,665,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,316,186.60 : 417,474,279.90 = 262,443,815.40 : x
  2. Step 2: Convert to fraction form
    278,316,186.60/417,474,279.90 = 262,443,815.40/x
  3. Step 3: Cross multiply
    278,316,186.60x = 417,474,279.90 × 262,443,815.40
  4. Step 4: Simplify right side
    278,316,186.60x = 109,563,542,848,323,520
  5. Step 5: Solve for x
    x = 109,563,542,848,323,520/278,316,186.60
  6. Step 6: Final answer
    x = 393,665,723.10

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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.