Home / 111,547,947.42-153,939,901.14-61,990,409.88

Finding the Fourth Proportional to 111,547,947.42, 153,939,901.14 and 61,990,409.88

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Solution

The fourth proportional to 111,547,947.42, 153,939,901.14 and 61,990,409.88 is: 85,548,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,547,947.42 : 153,939,901.14 = 61,990,409.88 : x
  2. Step 2: Convert to fraction form
    111,547,947.42/153,939,901.14 = 61,990,409.88/x
  3. Step 3: Cross multiply
    111,547,947.42x = 153,939,901.14 × 61,990,409.88
  4. Step 4: Simplify right side
    111,547,947.42x = 9,542,797,568,555,278
  5. Step 5: Solve for x
    x = 9,542,797,568,555,278/111,547,947.42
  6. Step 6: Final answer
    x = 85,548,840.56

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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.