Home / 12,255,128.34-18,384,688.35-3,620,104.98

Finding the Fourth Proportional to 12,255,128.34, 18,384,688.35 and 3,620,104.98

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Solution

The fourth proportional to 12,255,128.34, 18,384,688.35 and 3,620,104.98 is: 5,430,747.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255,128.34 : 18,384,688.35 = 3,620,104.98 : x
  2. Step 2: Convert to fraction form
    12,255,128.34/18,384,688.35 = 3,620,104.98/x
  3. Step 3: Cross multiply
    12,255,128.34x = 18,384,688.35 × 3,620,104.98
  4. Step 4: Simplify right side
    12,255,128.34x = 66,554,501,851,582.98
  5. Step 5: Solve for x
    x = 66,554,501,851,582.98/12,255,128.34
  6. Step 6: Final answer
    x = 5,430,747.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.