Home / 111,708,903.24-154,094,092.78-69,820,271.54

Finding the Fourth Proportional to 111,708,903.24, 154,094,092.78 and 69,820,271.54

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Solution

The fourth proportional to 111,708,903.24, 154,094,092.78 and 69,820,271.54 is: 96,311,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,708,903.24 : 154,094,092.78 = 69,820,271.54 : x
  2. Step 2: Convert to fraction form
    111,708,903.24/154,094,092.78 = 69,820,271.54/x
  3. Step 3: Cross multiply
    111,708,903.24x = 154,094,092.78 × 69,820,271.54
  4. Step 4: Simplify right side
    111,708,903.24x = 10,758,891,400,609,554
  5. Step 5: Solve for x
    x = 10,758,891,400,609,554/111,708,903.24
  6. Step 6: Final answer
    x = 96,311,852.40

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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.