Home / 248,588,613,328.96-343,051,641,156.82-138,721,807,437.72

Finding the Fourth Proportional to 248,588,613,328.96, 343,051,641,156.82 and 138,721,807,437.72

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Solution

The fourth proportional to 248,588,613,328.96, 343,051,641,156.82 and 138,721,807,437.72 is: 191,435,734,197.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,588,613,328.96 : 343,051,641,156.82 = 138,721,807,437.72 : x
  2. Step 2: Convert to fraction form
    248,588,613,328.96/343,051,641,156.82 = 138,721,807,437.72/x
  3. Step 3: Cross multiply
    248,588,613,328.96x = 343,051,641,156.82 × 138,721,807,437.72
  4. Step 4: Simplify right side
    248,588,613,328.96x = 47,588,743,705,750,205,890,560
  5. Step 5: Solve for x
    x = 47,588,743,705,750,205,890,560/248,588,613,328.96
  6. Step 6: Final answer
    x = 191,435,734,197.43

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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.