Home / 13,770,941.20-20,655,664.63-4,185,572.40

Finding the Fourth Proportional to 13,770,941.20, 20,655,664.63 and 4,185,572.40

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Solution

The fourth proportional to 13,770,941.20, 20,655,664.63 and 4,185,572.40 is: 6,278,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770,941.20 : 20,655,664.63 = 4,185,572.40 : x
  2. Step 2: Convert to fraction form
    13,770,941.20/20,655,664.63 = 4,185,572.40/x
  3. Step 3: Cross multiply
    13,770,941.20x = 20,655,664.63 × 4,185,572.40
  4. Step 4: Simplify right side
    13,770,941.20x = 86,455,779,768,520.28
  5. Step 5: Solve for x
    x = 86,455,779,768,520.28/13,770,941.20
  6. Step 6: Final answer
    x = 6,278,131.50

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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.