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Finding the Fourth Proportional to 1,259,714,401.20, 1,889,571,601.80 and 848,544,404.40

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Solution

The fourth proportional to 1,259,714,401.20, 1,889,571,601.80 and 848,544,404.40 is: 1,272,816,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,401.20 : 1,889,571,601.80 = 848,544,404.40 : x
  2. Step 2: Convert to fraction form
    1,259,714,401.20/1,889,571,601.80 = 848,544,404.40/x
  3. Step 3: Cross multiply
    1,259,714,401.20x = 1,889,571,601.80 × 848,544,404.40
  4. Step 4: Simplify right side
    1,259,714,401.20x = 1,603,385,409,420,534,784
  5. Step 5: Solve for x
    x = 1,603,385,409,420,534,784/1,259,714,401.20
  6. Step 6: Final answer
    x = 1,272,816,606.60

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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.