Home / 20,630,274.60-28,468,111.32-11,929,011.60

Finding the Fourth Proportional to 20,630,274.60, 28,468,111.32 and 11,929,011.60

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Solution

The fourth proportional to 20,630,274.60, 28,468,111.32 and 11,929,011.60 is: 16,461,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,274.60 : 28,468,111.32 = 11,929,011.60 : x
  2. Step 2: Convert to fraction form
    20,630,274.60/28,468,111.32 = 11,929,011.60/x
  3. Step 3: Cross multiply
    20,630,274.60x = 28,468,111.32 × 11,929,011.60
  4. Step 4: Simplify right side
    20,630,274.60x = 339,596,430,166,371.31
  5. Step 5: Solve for x
    x = 339,596,430,166,371.31/20,630,274.60
  6. Step 6: Final answer
    x = 16,461,071.74

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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.