Home / 520,064,238.33-780,364,558.21-243,743,524.65

Finding the Fourth Proportional to 520,064,238.33, 780,364,558.21 and 243,743,524.65

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Solution

The fourth proportional to 520,064,238.33, 780,364,558.21 and 243,743,524.65 is: 365,740,987.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,064,238.33 : 780,364,558.21 = 243,743,524.65 : x
  2. Step 2: Convert to fraction form
    520,064,238.33/780,364,558.21 = 243,743,524.65/x
  3. Step 3: Cross multiply
    520,064,238.33x = 780,364,558.21 × 243,743,524.65
  4. Step 4: Simplify right side
    520,064,238.33x = 190,208,807,930,045,504
  5. Step 5: Solve for x
    x = 190,208,807,930,045,504/520,064,238.33
  6. Step 6: Final answer
    x = 365,740,987.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.