Home / 993,385,890.60-1,490,078,835.90-338,119,137.60

Finding the Fourth Proportional to 993,385,890.60, 1,490,078,835.90 and 338,119,137.60

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Solution

The fourth proportional to 993,385,890.60, 1,490,078,835.90 and 338,119,137.60 is: 507,178,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,385,890.60 : 1,490,078,835.90 = 338,119,137.60 : x
  2. Step 2: Convert to fraction form
    993,385,890.60/1,490,078,835.90 = 338,119,137.60/x
  3. Step 3: Cross multiply
    993,385,890.60x = 1,490,078,835.90 × 338,119,137.60
  4. Step 4: Simplify right side
    993,385,890.60x = 503,824,170,950,520,000
  5. Step 5: Solve for x
    x = 503,824,170,950,520,000/993,385,890.60
  6. Step 6: Final answer
    x = 507,178,706.40

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Double scale
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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.