Home / 1,211,114,937.78-1,671,339,286.89-654,197,989.50

Finding the Fourth Proportional to 1,211,114,937.78, 1,671,339,286.89 and 654,197,989.50

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Solution

The fourth proportional to 1,211,114,937.78, 1,671,339,286.89 and 654,197,989.50 is: 902,793,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,114,937.78 : 1,671,339,286.89 = 654,197,989.50 : x
  2. Step 2: Convert to fraction form
    1,211,114,937.78/1,671,339,286.89 = 654,197,989.50/x
  3. Step 3: Cross multiply
    1,211,114,937.78x = 1,671,339,286.89 × 654,197,989.50
  4. Step 4: Simplify right side
    1,211,114,937.78x = 1,093,386,801,255,801,728
  5. Step 5: Solve for x
    x = 1,093,386,801,255,801,728/1,211,114,937.78
  6. Step 6: Final answer
    x = 902,793,588.91

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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.