Home / 279,038,715.42-385,070,371.38-153,588,229.23

Finding the Fourth Proportional to 279,038,715.42, 385,070,371.38 and 153,588,229.23

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Solution

The fourth proportional to 279,038,715.42, 385,070,371.38 and 153,588,229.23 is: 211,950,074.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,038,715.42 : 385,070,371.38 = 153,588,229.23 : x
  2. Step 2: Convert to fraction form
    279,038,715.42/385,070,371.38 = 153,588,229.23/x
  3. Step 3: Cross multiply
    279,038,715.42x = 385,070,371.38 × 153,588,229.23
  4. Step 4: Simplify right side
    279,038,715.42x = 59,142,276,469,192,664
  5. Step 5: Solve for x
    x = 59,142,276,469,192,664/279,038,715.42
  6. Step 6: Final answer
    x = 211,950,074.31

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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.