Home / 416,451,345.60-624,677,018.40-212,378,001.60

Finding the Fourth Proportional to 416,451,345.60, 624,677,018.40 and 212,378,001.60

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Solution

The fourth proportional to 416,451,345.60, 624,677,018.40 and 212,378,001.60 is: 318,567,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,451,345.60 : 624,677,018.40 = 212,378,001.60 : x
  2. Step 2: Convert to fraction form
    416,451,345.60/624,677,018.40 = 212,378,001.60/x
  3. Step 3: Cross multiply
    416,451,345.60x = 624,677,018.40 × 212,378,001.60
  4. Step 4: Simplify right side
    416,451,345.60x = 132,667,656,813,238,416
  5. Step 5: Solve for x
    x = 132,667,656,813,238,416/416,451,345.60
  6. Step 6: Final answer
    x = 318,567,002.40

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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.