Home / 8,809,222.81-12,158,189.55-5,138,139.38

Finding the Fourth Proportional to 8,809,222.81, 12,158,189.55 and 5,138,139.38

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Solution

The fourth proportional to 8,809,222.81, 12,158,189.55 and 5,138,139.38 is: 7,091,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809,222.81 : 12,158,189.55 = 5,138,139.38 : x
  2. Step 2: Convert to fraction form
    8,809,222.81/12,158,189.55 = 5,138,139.38/x
  3. Step 3: Cross multiply
    8,809,222.81x = 12,158,189.55 × 5,138,139.38
  4. Step 4: Simplify right side
    8,809,222.81x = 62,470,472,548,781.81
  5. Step 5: Solve for x
    x = 62,470,472,548,781.81/8,809,222.81
  6. Step 6: Final answer
    x = 7,091,485.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.