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Finding the Fourth Proportional to 21,218,273,998.20, 29,749,119,244.20 and 21,218,273,998.20

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Solution

The fourth proportional to 21,218,273,998.20, 29,749,119,244.20 and 21,218,273,998.20 is: 29,749,119,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,218,273,998.20 : 29,749,119,244.20 = 21,218,273,998.20 : x
  2. Step 2: Convert to fraction form
    21,218,273,998.20/29,749,119,244.20 = 21,218,273,998.20/x
  3. Step 3: Cross multiply
    21,218,273,998.20x = 29,749,119,244.20 × 21,218,273,998.20
  4. Step 4: Simplify right side
    21,218,273,998.20x = 631,224,963,328,560,070,656
  5. Step 5: Solve for x
    x = 631,224,963,328,560,070,656/21,218,273,998.20
  6. Step 6: Final answer
    x = 29,749,119,244.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.