Home / 20,781,307.86-28,679,090.52-11,613,950.34

Finding the Fourth Proportional to 20,781,307.86, 28,679,090.52 and 11,613,950.34

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Solution

The fourth proportional to 20,781,307.86, 28,679,090.52 and 11,613,950.34 is: 16,027,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,781,307.86 : 28,679,090.52 = 11,613,950.34 : x
  2. Step 2: Convert to fraction form
    20,781,307.86/28,679,090.52 = 11,613,950.34/x
  3. Step 3: Cross multiply
    20,781,307.86x = 28,679,090.52 × 11,613,950.34
  4. Step 4: Simplify right side
    20,781,307.86x = 333,077,533,095,644.75
  5. Step 5: Solve for x
    x = 333,077,533,095,644.75/20,781,307.86
  6. Step 6: Final answer
    x = 16,027,746.44

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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.