Home / 256,131,503.94-353,461,589.54-138,656,830.38

Finding the Fourth Proportional to 256,131,503.94, 353,461,589.54 and 138,656,830.38

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Solution

The fourth proportional to 256,131,503.94, 353,461,589.54 and 138,656,830.38 is: 191,346,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,131,503.94 : 353,461,589.54 = 138,656,830.38 : x
  2. Step 2: Convert to fraction form
    256,131,503.94/353,461,589.54 = 138,656,830.38/x
  3. Step 3: Cross multiply
    256,131,503.94x = 353,461,589.54 × 138,656,830.38
  4. Step 4: Simplify right side
    256,131,503.94x = 49,009,863,666,692,960
  5. Step 5: Solve for x
    x = 49,009,863,666,692,960/256,131,503.94
  6. Step 6: Final answer
    x = 191,346,487.69

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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.