Home / 1,280,159,349.80-1,920,239,024.70-1,259,752,015.40

Finding the Fourth Proportional to 1,280,159,349.80, 1,920,239,024.70 and 1,259,752,015.40

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Solution

The fourth proportional to 1,280,159,349.80, 1,920,239,024.70 and 1,259,752,015.40 is: 1,889,628,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,159,349.80 : 1,920,239,024.70 = 1,259,752,015.40 : x
  2. Step 2: Convert to fraction form
    1,280,159,349.80/1,920,239,024.70 = 1,259,752,015.40/x
  3. Step 3: Cross multiply
    1,280,159,349.80x = 1,920,239,024.70 × 1,259,752,015.40
  4. Step 4: Simplify right side
    1,280,159,349.80x = 2,419,024,981,415,555,584
  5. Step 5: Solve for x
    x = 2,419,024,981,415,555,584/1,280,159,349.80
  6. Step 6: Final answer
    x = 1,889,628,023.10

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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.