Home / 998,879,973,139.28-1,378,218,104,709-565,332,362,061.68

Finding the Fourth Proportional to 998,879,973,139.28, 1,378,218,104,709 and 565,332,362,061.68

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Solution

The fourth proportional to 998,879,973,139.28, 1,378,218,104,709 and 565,332,362,061.68 is: 780,024,945,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,879,973,139.28 : 1,378,218,104,709 = 565,332,362,061.68 : x
  2. Step 2: Convert to fraction form
    998,879,973,139.28/1,378,218,104,709 = 565,332,362,061.68/x
  3. Step 3: Cross multiply
    998,879,973,139.28x = 1,378,218,104,709 × 565,332,362,061.68
  4. Step 4: Simplify right side
    998,879,973,139.28x = 779,151,296,571,310,872,723,456
  5. Step 5: Solve for x
    x = 779,151,296,571,310,872,723,456/998,879,973,139.28
  6. Step 6: Final answer
    x = 780,024,945,462.26

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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.