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Finding the Fourth Proportional to 8,114,721,000.40, 12,172,081,500.60 and 8,114,721,000.40

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Solution

The fourth proportional to 8,114,721,000.40, 12,172,081,500.60 and 8,114,721,000.40 is: 12,172,081,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114,721,000.40 : 12,172,081,500.60 = 8,114,721,000.40 : x
  2. Step 2: Convert to fraction form
    8,114,721,000.40/12,172,081,500.60 = 8,114,721,000.40/x
  3. Step 3: Cross multiply
    8,114,721,000.40x = 12,172,081,500.60 × 8,114,721,000.40
  4. Step 4: Simplify right side
    8,114,721,000.40x = 98,773,045,371,499,167,744
  5. Step 5: Solve for x
    x = 98,773,045,371,499,167,744/8,114,721,000.40
  6. Step 6: Final answer
    x = 12,172,081,500.60

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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.