Home / 19,931,288,455.19-27,492,217,968.82-12,783,380,433.14

Finding the Fourth Proportional to 19,931,288,455.19, 27,492,217,968.82 and 12,783,380,433.14

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Solution

The fourth proportional to 19,931,288,455.19, 27,492,217,968.82 and 12,783,380,433.14 is: 17,632,752,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,288,455.19 : 27,492,217,968.82 = 12,783,380,433.14 : x
  2. Step 2: Convert to fraction form
    19,931,288,455.19/27,492,217,968.82 = 12,783,380,433.14/x
  3. Step 3: Cross multiply
    19,931,288,455.19x = 27,492,217,968.82 × 12,783,380,433.14
  4. Step 4: Simplify right side
    19,931,288,455.19x = 351,443,481,246,233,460,736
  5. Step 5: Solve for x
    x = 351,443,481,246,233,460,736/19,931,288,455.19
  6. Step 6: Final answer
    x = 17,632,752,746.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.