Home / 19,171,197.12-28,748,800.80-7,803,929.28

Finding the Fourth Proportional to 19,171,197.12, 28,748,800.80 and 7,803,929.28

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Solution

The fourth proportional to 19,171,197.12, 28,748,800.80 and 7,803,929.28 is: 11,702,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171,197.12 : 28,748,800.80 = 7,803,929.28 : x
  2. Step 2: Convert to fraction form
    19,171,197.12/28,748,800.80 = 7,803,929.28/x
  3. Step 3: Cross multiply
    19,171,197.12x = 28,748,800.80 × 7,803,929.28
  4. Step 4: Simplify right side
    19,171,197.12x = 224,353,608,328,007.44
  5. Step 5: Solve for x
    x = 224,353,608,328,007.44/19,171,197.12
  6. Step 6: Final answer
    x = 11,702,639.48

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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.