Home / 10,328,338.50-15,462,590.28-7,780,284.62

Finding the Fourth Proportional to 10,328,338.50, 15,462,590.28 and 7,780,284.62

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Solution

The fourth proportional to 10,328,338.50, 15,462,590.28 and 7,780,284.62 is: 11,647,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,328,338.50 : 15,462,590.28 = 7,780,284.62 : x
  2. Step 2: Convert to fraction form
    10,328,338.50/15,462,590.28 = 7,780,284.62/x
  3. Step 3: Cross multiply
    10,328,338.50x = 15,462,590.28 × 7,780,284.62
  4. Step 4: Simplify right side
    10,328,338.50x = 120,303,353,335,829.70
  5. Step 5: Solve for x
    x = 120,303,353,335,829.70/10,328,338.50
  6. Step 6: Final answer
    x = 11,647,890.25

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1.5x scale

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.