Home / 874,128,394.86-1,206,300,320.49-477,651,376.20

Finding the Fourth Proportional to 874,128,394.86, 1,206,300,320.49 and 477,651,376.20

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Solution

The fourth proportional to 874,128,394.86, 1,206,300,320.49 and 477,651,376.20 is: 659,160,612.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,128,394.86 : 1,206,300,320.49 = 477,651,376.20 : x
  2. Step 2: Convert to fraction form
    874,128,394.86/1,206,300,320.49 = 477,651,376.20/x
  3. Step 3: Cross multiply
    874,128,394.86x = 1,206,300,320.49 × 477,651,376.20
  4. Step 4: Simplify right side
    874,128,394.86x = 576,191,008,192,549,568
  5. Step 5: Solve for x
    x = 576,191,008,192,549,568/874,128,394.86
  6. Step 6: Final answer
    x = 659,160,612.54

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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.