Home / 306,406,008.50-422,970,763-205,992,681.75

Finding the Fourth Proportional to 306,406,008.50, 422,970,763 and 205,992,681.75

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Solution

The fourth proportional to 306,406,008.50, 422,970,763 and 205,992,681.75 is: 284,357,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,406,008.50 : 422,970,763 = 205,992,681.75 : x
  2. Step 2: Convert to fraction form
    306,406,008.50/422,970,763 = 205,992,681.75/x
  3. Step 3: Cross multiply
    306,406,008.50x = 422,970,763 × 205,992,681.75
  4. Step 4: Simplify right side
    306,406,008.50x = 87,128,881,772,213,680
  5. Step 5: Solve for x
    x = 87,128,881,772,213,680/306,406,008.50
  6. Step 6: Final answer
    x = 284,357,614.91

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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.