Home / 343,761,642.09-474,391,117.26-187,129,938.15

Finding the Fourth Proportional to 343,761,642.09, 474,391,117.26 and 187,129,938.15

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Solution

The fourth proportional to 343,761,642.09, 474,391,117.26 and 187,129,938.15 is: 258,239,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,761,642.09 : 474,391,117.26 = 187,129,938.15 : x
  2. Step 2: Convert to fraction form
    343,761,642.09/474,391,117.26 = 187,129,938.15/x
  3. Step 3: Cross multiply
    343,761,642.09x = 474,391,117.26 × 187,129,938.15
  4. Step 4: Simplify right side
    343,761,642.09x = 88,772,780,431,773,200
  5. Step 5: Solve for x
    x = 88,772,780,431,773,200/343,761,642.09
  6. Step 6: Final answer
    x = 258,239,342.51

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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.