Home / 20,402,968.88-28,153,953-11,579,613.98

Finding the Fourth Proportional to 20,402,968.88, 28,153,953 and 11,579,613.98

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Solution

The fourth proportional to 20,402,968.88, 28,153,953 and 11,579,613.98 is: 15,978,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,968.88 : 28,153,953 = 11,579,613.98 : x
  2. Step 2: Convert to fraction form
    20,402,968.88/28,153,953 = 11,579,613.98/x
  3. Step 3: Cross multiply
    20,402,968.88x = 28,153,953 × 11,579,613.98
  4. Step 4: Simplify right side
    20,402,968.88x = 326,011,907,751,062.94
  5. Step 5: Solve for x
    x = 326,011,907,751,062.94/20,402,968.88
  6. Step 6: Final answer
    x = 15,978,650.44

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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.