Home / 7,139,442.05-10,685,481.50-6,501,220.77

Finding the Fourth Proportional to 7,139,442.05, 10,685,481.50 and 6,501,220.77

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Solution

The fourth proportional to 7,139,442.05, 10,685,481.50 and 6,501,220.77 is: 9,730,266.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,442.05 : 10,685,481.50 = 6,501,220.77 : x
  2. Step 2: Convert to fraction form
    7,139,442.05/10,685,481.50 = 6,501,220.77/x
  3. Step 3: Cross multiply
    7,139,442.05x = 10,685,481.50 × 6,501,220.77
  4. Step 4: Simplify right side
    7,139,442.05x = 69,468,674,265,250.75
  5. Step 5: Solve for x
    x = 69,468,674,265,250.75/7,139,442.05
  6. Step 6: Final answer
    x = 9,730,266.56

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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.