Home / 20,651,970-28,500,256.32-11,359,779.60

Finding the Fourth Proportional to 20,651,970, 28,500,256.32 and 11,359,779.60

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Solution

The fourth proportional to 20,651,970, 28,500,256.32 and 11,359,779.60 is: 15,676,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651,970 : 28,500,256.32 = 11,359,779.60 : x
  2. Step 2: Convert to fraction form
    20,651,970/28,500,256.32 = 11,359,779.60/x
  3. Step 3: Cross multiply
    20,651,970x = 28,500,256.32 × 11,359,779.60
  4. Step 4: Simplify right side
    20,651,970x = 323,756,630,338,707.06
  5. Step 5: Solve for x
    x = 323,756,630,338,707.06/20,651,970
  6. Step 6: Final answer
    x = 15,676,791.63

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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.