Home / 368,412,425.94-508,453,729.50-209,681,142.21

Finding the Fourth Proportional to 368,412,425.94, 508,453,729.50 and 209,681,142.21

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Solution

The fourth proportional to 368,412,425.94, 508,453,729.50 and 209,681,142.21 is: 289,385,349.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,412,425.94 : 508,453,729.50 = 209,681,142.21 : x
  2. Step 2: Convert to fraction form
    368,412,425.94/508,453,729.50 = 209,681,142.21/x
  3. Step 3: Cross multiply
    368,412,425.94x = 508,453,729.50 × 209,681,142.21
  4. Step 4: Simplify right side
    368,412,425.94x = 106,613,158,762,494,384
  5. Step 5: Solve for x
    x = 106,613,158,762,494,384/368,412,425.94
  6. Step 6: Final answer
    x = 289,385,349.83

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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.