Home / 315,378,879,273.09-435,217,180,156.96-178,198,760,208.97

Finding the Fourth Proportional to 315,378,879,273.09, 435,217,180,156.96 and 178,198,760,208.97

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Solution

The fourth proportional to 315,378,879,273.09, 435,217,180,156.96 and 178,198,760,208.97 is: 245,911,083,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,378,879,273.09 : 435,217,180,156.96 = 178,198,760,208.97 : x
  2. Step 2: Convert to fraction form
    315,378,879,273.09/435,217,180,156.96 = 178,198,760,208.97/x
  3. Step 3: Cross multiply
    315,378,879,273.09x = 435,217,180,156.96 × 178,198,760,208.97
  4. Step 4: Simplify right side
    315,378,879,273.09x = 77,555,161,925,614,210,908,160
  5. Step 5: Solve for x
    x = 77,555,161,925,614,210,908,160/315,378,879,273.09
  6. Step 6: Final answer
    x = 245,911,083,533.46

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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.