Home / 25,621,804.80-38,386,051.20-12,128,889.60

Finding the Fourth Proportional to 25,621,804.80, 38,386,051.20 and 12,128,889.60

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Solution

The fourth proportional to 25,621,804.80, 38,386,051.20 and 12,128,889.60 is: 18,171,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621,804.80 : 38,386,051.20 = 12,128,889.60 : x
  2. Step 2: Convert to fraction form
    25,621,804.80/38,386,051.20 = 12,128,889.60/x
  3. Step 3: Cross multiply
    25,621,804.80x = 38,386,051.20 × 12,128,889.60
  4. Step 4: Simplify right side
    25,621,804.80x = 465,580,177,184,747.56
  5. Step 5: Solve for x
    x = 465,580,177,184,747.56/25,621,804.80
  6. Step 6: Final answer
    x = 18,171,248.31

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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.