Home / 291,681,997.50-402,496,823.37-164,515,668.11

Finding the Fourth Proportional to 291,681,997.50, 402,496,823.37 and 164,515,668.11

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Solution

The fourth proportional to 291,681,997.50, 402,496,823.37 and 164,515,668.11 is: 227,017,897.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,681,997.50 : 402,496,823.37 = 164,515,668.11 : x
  2. Step 2: Convert to fraction form
    291,681,997.50/402,496,823.37 = 164,515,668.11/x
  3. Step 3: Cross multiply
    291,681,997.50x = 402,496,823.37 × 164,515,668.11
  4. Step 4: Simplify right side
    291,681,997.50x = 66,217,033,806,855,728
  5. Step 5: Solve for x
    x = 66,217,033,806,855,728/291,681,997.50
  6. Step 6: Final answer
    x = 227,017,897.49

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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.