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Finding the Fourth Proportional to 13,119,768,047.20, 19,679,652,070.80 and 13,119,768,047.20

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Solution

The fourth proportional to 13,119,768,047.20, 19,679,652,070.80 and 13,119,768,047.20 is: 19,679,652,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119,768,047.20 : 19,679,652,070.80 = 13,119,768,047.20 : x
  2. Step 2: Convert to fraction form
    13,119,768,047.20/19,679,652,070.80 = 13,119,768,047.20/x
  3. Step 3: Cross multiply
    13,119,768,047.20x = 19,679,652,070.80 × 13,119,768,047.20
  4. Step 4: Simplify right side
    13,119,768,047.20x = 258,192,470,418,495,143,936
  5. Step 5: Solve for x
    x = 258,192,470,418,495,143,936/13,119,768,047.20
  6. Step 6: Final answer
    x = 19,679,652,070.80

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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.