Home / 256,131,104.40-353,460,846.96-138,656,348.64

Finding the Fourth Proportional to 256,131,104.40, 353,460,846.96 and 138,656,348.64

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Solution

The fourth proportional to 256,131,104.40, 353,460,846.96 and 138,656,348.64 is: 191,345,719.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,131,104.40 : 353,460,846.96 = 138,656,348.64 : x
  2. Step 2: Convert to fraction form
    256,131,104.40/353,460,846.96 = 138,656,348.64/x
  3. Step 3: Cross multiply
    256,131,104.40x = 353,460,846.96 × 138,656,348.64
  4. Step 4: Simplify right side
    256,131,104.40x = 49,009,590,426,675,440
  5. Step 5: Solve for x
    x = 49,009,590,426,675,440/256,131,104.40
  6. Step 6: Final answer
    x = 191,345,719.38

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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.