Home / 111,266,742.06-153,542,706.75-61,709,081.40

Finding the Fourth Proportional to 111,266,742.06, 153,542,706.75 and 61,709,081.40

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Solution

The fourth proportional to 111,266,742.06, 153,542,706.75 and 61,709,081.40 is: 85,155,538.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,266,742.06 : 153,542,706.75 = 61,709,081.40 : x
  2. Step 2: Convert to fraction form
    111,266,742.06/153,542,706.75 = 61,709,081.40/x
  3. Step 3: Cross multiply
    111,266,742.06x = 153,542,706.75 × 61,709,081.40
  4. Step 4: Simplify right side
    111,266,742.06x = 9,474,979,389,212,080
  5. Step 5: Solve for x
    x = 9,474,979,389,212,080/111,266,742.06
  6. Step 6: Final answer
    x = 85,155,538.97

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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.