Home / 20,906,889,503.56-28,851,142,662.66-11,391,520,017.40

Finding the Fourth Proportional to 20,906,889,503.56, 28,851,142,662.66 and 11,391,520,017.40

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Solution

The fourth proportional to 20,906,889,503.56, 28,851,142,662.66 and 11,391,520,017.40 is: 15,720,098,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906,889,503.56 : 28,851,142,662.66 = 11,391,520,017.40 : x
  2. Step 2: Convert to fraction form
    20,906,889,503.56/28,851,142,662.66 = 11,391,520,017.40/x
  3. Step 3: Cross multiply
    20,906,889,503.56x = 28,851,142,662.66 × 11,391,520,017.40
  4. Step 4: Simplify right side
    20,906,889,503.56x = 328,658,369,166,554,497,024
  5. Step 5: Solve for x
    x = 328,658,369,166,554,497,024/20,906,889,503.56
  6. Step 6: Final answer
    x = 15,720,098,827.26

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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.