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Finding the Fourth Proportional to 20,112,131,541.40, 30,168,197,312.10 and 20,112,131,541.40

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Solution

The fourth proportional to 20,112,131,541.40, 30,168,197,312.10 and 20,112,131,541.40 is: 30,168,197,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,131,541.40 : 30,168,197,312.10 = 20,112,131,541.40 : x
  2. Step 2: Convert to fraction form
    20,112,131,541.40/30,168,197,312.10 = 20,112,131,541.40/x
  3. Step 3: Cross multiply
    20,112,131,541.40x = 30,168,197,312.10 × 20,112,131,541.40
  4. Step 4: Simplify right side
    20,112,131,541.40x = 606,746,752,707,865,083,904
  5. Step 5: Solve for x
    x = 606,746,752,707,865,083,904/20,112,131,541.40
  6. Step 6: Final answer
    x = 30,168,197,312.10

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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.