Home / 20,118,047.40-30,160,143.72-8,749,933.92

Finding the Fourth Proportional to 20,118,047.40, 30,160,143.72 and 8,749,933.92

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Solution

The fourth proportional to 20,118,047.40, 30,160,143.72 and 8,749,933.92 is: 13,117,538.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,047.40 : 30,160,143.72 = 8,749,933.92 : x
  2. Step 2: Convert to fraction form
    20,118,047.40/30,160,143.72 = 8,749,933.92/x
  3. Step 3: Cross multiply
    20,118,047.40x = 30,160,143.72 × 8,749,933.92
  4. Step 4: Simplify right side
    20,118,047.40x = 263,899,264,567,702.97
  5. Step 5: Solve for x
    x = 263,899,264,567,702.97/20,118,047.40
  6. Step 6: Final answer
    x = 13,117,538.66

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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.