Home / 20,938,861.51-28,895,214.50-11,646,231.58

Finding the Fourth Proportional to 20,938,861.51, 28,895,214.50 and 11,646,231.58

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Solution

The fourth proportional to 20,938,861.51, 28,895,214.50 and 11,646,231.58 is: 16,071,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,938,861.51 : 28,895,214.50 = 11,646,231.58 : x
  2. Step 2: Convert to fraction form
    20,938,861.51/28,895,214.50 = 11,646,231.58/x
  3. Step 3: Cross multiply
    20,938,861.51x = 28,895,214.50 × 11,646,231.58
  4. Step 4: Simplify right side
    20,938,861.51x = 336,520,359,584,485.25
  5. Step 5: Solve for x
    x = 336,520,359,584,485.25/20,938,861.51
  6. Step 6: Final answer
    x = 16,071,569.10

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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.