Home / 445,548,455.40-668,322,683.10-407,253,210.60

Finding the Fourth Proportional to 445,548,455.40, 668,322,683.10 and 407,253,210.60

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Solution

The fourth proportional to 445,548,455.40, 668,322,683.10 and 407,253,210.60 is: 610,879,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,548,455.40 : 668,322,683.10 = 407,253,210.60 : x
  2. Step 2: Convert to fraction form
    445,548,455.40/668,322,683.10 = 407,253,210.60/x
  3. Step 3: Cross multiply
    445,548,455.40x = 668,322,683.10 × 407,253,210.60
  4. Step 4: Simplify right side
    445,548,455.40x = 272,176,558,409,281,376
  5. Step 5: Solve for x
    x = 272,176,558,409,281,376/445,548,455.40
  6. Step 6: Final answer
    x = 610,879,815.90

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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.