Home / 478,956,694,107.28-660,915,025,043.76-286,230,497,806.48

Finding the Fourth Proportional to 478,956,694,107.28, 660,915,025,043.76 and 286,230,497,806.48

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Solution

The fourth proportional to 478,956,694,107.28, 660,915,025,043.76 and 286,230,497,806.48 is: 394,971,067,224.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,956,694,107.28 : 660,915,025,043.76 = 286,230,497,806.48 : x
  2. Step 2: Convert to fraction form
    478,956,694,107.28/660,915,025,043.76 = 286,230,497,806.48/x
  3. Step 3: Cross multiply
    478,956,694,107.28x = 660,915,025,043.76 × 286,230,497,806.48
  4. Step 4: Simplify right side
    478,956,694,107.28x = 189,174,036,626,057,619,046,400
  5. Step 5: Solve for x
    x = 189,174,036,626,057,619,046,400/478,956,694,107.28
  6. Step 6: Final answer
    x = 394,971,067,224.89

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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.