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Finding the Fourth Proportional to 18,403,238,487.20, 27,604,857,730.80 and 18,403,238,487.20

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Solution

The fourth proportional to 18,403,238,487.20, 27,604,857,730.80 and 18,403,238,487.20 is: 27,604,857,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403,238,487.20 : 27,604,857,730.80 = 18,403,238,487.20 : x
  2. Step 2: Convert to fraction form
    18,403,238,487.20/27,604,857,730.80 = 18,403,238,487.20/x
  3. Step 3: Cross multiply
    18,403,238,487.20x = 27,604,857,730.80 × 18,403,238,487.20
  4. Step 4: Simplify right side
    18,403,238,487.20x = 508,018,780,225,139,048,448
  5. Step 5: Solve for x
    x = 508,018,780,225,139,048,448/18,403,238,487.20
  6. Step 6: Final answer
    x = 27,604,857,730.80

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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.