Home / 547,588,523.12-755,709,237.44-309,351,079.40

Finding the Fourth Proportional to 547,588,523.12, 755,709,237.44 and 309,351,079.40

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Solution

The fourth proportional to 547,588,523.12, 755,709,237.44 and 309,351,079.40 is: 426,925,434.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,588,523.12 : 755,709,237.44 = 309,351,079.40 : x
  2. Step 2: Convert to fraction form
    547,588,523.12/755,709,237.44 = 309,351,079.40/x
  3. Step 3: Cross multiply
    547,588,523.12x = 755,709,237.44 × 309,351,079.40
  4. Step 4: Simplify right side
    547,588,523.12x = 233,779,468,314,614,880
  5. Step 5: Solve for x
    x = 233,779,468,314,614,880/547,588,523.12
  6. Step 6: Final answer
    x = 426,925,434.78

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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.