Home / 487,640,202,298.07-672,791,659,668.39-281,799,451,515.07

Finding the Fourth Proportional to 487,640,202,298.07, 672,791,659,668.39 and 281,799,451,515.07

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Solution

The fourth proportional to 487,640,202,298.07, 672,791,659,668.39 and 281,799,451,515.07 is: 388,795,509,035.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,640,202,298.07 : 672,791,659,668.39 = 281,799,451,515.07 : x
  2. Step 2: Convert to fraction form
    487,640,202,298.07/672,791,659,668.39 = 281,799,451,515.07/x
  3. Step 3: Cross multiply
    487,640,202,298.07x = 672,791,659,668.39 × 281,799,451,515.07
  4. Step 4: Simplify right side
    487,640,202,298.07x = 189,592,320,678,465,959,362,560
  5. Step 5: Solve for x
    x = 189,592,320,678,465,959,362,560/487,640,202,298.07
  6. Step 6: Final answer
    x = 388,795,509,035.12

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1.5x scale

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.