Home / 1,362,890,806.40-2,044,336,209.60-442,860,147.20

Finding the Fourth Proportional to 1,362,890,806.40, 2,044,336,209.60 and 442,860,147.20

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Solution

The fourth proportional to 1,362,890,806.40, 2,044,336,209.60 and 442,860,147.20 is: 664,290,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,890,806.40 : 2,044,336,209.60 = 442,860,147.20 : x
  2. Step 2: Convert to fraction form
    1,362,890,806.40/2,044,336,209.60 = 442,860,147.20/x
  3. Step 3: Cross multiply
    1,362,890,806.40x = 2,044,336,209.60 × 442,860,147.20
  4. Step 4: Simplify right side
    1,362,890,806.40x = 905,355,034,709,746,048
  5. Step 5: Solve for x
    x = 905,355,034,709,746,048/1,362,890,806.40
  6. Step 6: Final answer
    x = 664,290,220.80

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Double scale
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Similar ratio
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1.5x scale

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.