Home / 278,281,023.62-417,421,295.60-71,019,417.60

Finding the Fourth Proportional to 278,281,023.62, 417,421,295.60 and 71,019,417.60

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Solution

The fourth proportional to 278,281,023.62, 417,421,295.60 and 71,019,417.60 is: 106,529,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,281,023.62 : 417,421,295.60 = 71,019,417.60 : x
  2. Step 2: Convert to fraction form
    278,281,023.62/417,421,295.60 = 71,019,417.60/x
  3. Step 3: Cross multiply
    278,281,023.62x = 417,421,295.60 × 71,019,417.60
  4. Step 4: Simplify right side
    278,281,023.62x = 29,645,017,306,994,344
  5. Step 5: Solve for x
    x = 29,645,017,306,994,344/278,281,023.62
  6. Step 6: Final answer
    x = 106,529,065.19

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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.