Home / 28,973,897.20-43,460,845.80-8,780,143.60

Finding the Fourth Proportional to 28,973,897.20, 43,460,845.80 and 8,780,143.60

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Solution

The fourth proportional to 28,973,897.20, 43,460,845.80 and 8,780,143.60 is: 13,170,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973,897.20 : 43,460,845.80 = 8,780,143.60 : x
  2. Step 2: Convert to fraction form
    28,973,897.20/43,460,845.80 = 8,780,143.60/x
  3. Step 3: Cross multiply
    28,973,897.20x = 43,460,845.80 × 8,780,143.60
  4. Step 4: Simplify right side
    28,973,897.20x = 381,592,467,101,456.81
  5. Step 5: Solve for x
    x = 381,592,467,101,456.81/28,973,897.20
  6. Step 6: Final answer
    x = 13,170,215.40

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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.