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Finding the Fourth Proportional to 12,791,160,018.80, 19,152,302,651.40 and 12,791,160,018.80

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Solution

The fourth proportional to 12,791,160,018.80, 19,152,302,651.40 and 12,791,160,018.80 is: 19,152,302,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,160,018.80 : 19,152,302,651.40 = 12,791,160,018.80 : x
  2. Step 2: Convert to fraction form
    12,791,160,018.80/19,152,302,651.40 = 12,791,160,018.80/x
  3. Step 3: Cross multiply
    12,791,160,018.80x = 19,152,302,651.40 × 12,791,160,018.80
  4. Step 4: Simplify right side
    12,791,160,018.80x = 244,980,167,942,544,916,480
  5. Step 5: Solve for x
    x = 244,980,167,942,544,916,480/12,791,160,018.80
  6. Step 6: Final answer
    x = 19,152,302,651.40

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Double scale
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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.