Home / 1,400,320,190.40-2,100,480,285.60-674,726,078.40

Finding the Fourth Proportional to 1,400,320,190.40, 2,100,480,285.60 and 674,726,078.40

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Solution

The fourth proportional to 1,400,320,190.40, 2,100,480,285.60 and 674,726,078.40 is: 1,012,089,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,320,190.40 : 2,100,480,285.60 = 674,726,078.40 : x
  2. Step 2: Convert to fraction form
    1,400,320,190.40/2,100,480,285.60 = 674,726,078.40/x
  3. Step 3: Cross multiply
    1,400,320,190.40x = 2,100,480,285.60 × 674,726,078.40
  4. Step 4: Simplify right side
    1,400,320,190.40x = 1,417,248,825,859,399,936
  5. Step 5: Solve for x
    x = 1,417,248,825,859,399,936/1,400,320,190.40
  6. Step 6: Final answer
    x = 1,012,089,117.60

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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.