Home / 12,768,021.20-19,152,031.80-4,248,635.60

Finding the Fourth Proportional to 12,768,021.20, 19,152,031.80 and 4,248,635.60

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Solution

The fourth proportional to 12,768,021.20, 19,152,031.80 and 4,248,635.60 is: 6,372,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,021.20 : 19,152,031.80 = 4,248,635.60 : x
  2. Step 2: Convert to fraction form
    12,768,021.20/19,152,031.80 = 4,248,635.60/x
  3. Step 3: Cross multiply
    12,768,021.20x = 19,152,031.80 × 4,248,635.60
  4. Step 4: Simplify right side
    12,768,021.20x = 81,370,004,117,812.08
  5. Step 5: Solve for x
    x = 81,370,004,117,812.08/12,768,021.20
  6. Step 6: Final answer
    x = 6,372,953.40

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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.