Home / 111,532,321.36-153,907,856.24-61,971,000.40

Finding the Fourth Proportional to 111,532,321.36, 153,907,856.24 and 61,971,000.40

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Solution

The fourth proportional to 111,532,321.36, 153,907,856.24 and 61,971,000.40 is: 85,516,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,532,321.36 : 153,907,856.24 = 61,971,000.40 : x
  2. Step 2: Convert to fraction form
    111,532,321.36/153,907,856.24 = 61,971,000.40/x
  3. Step 3: Cross multiply
    111,532,321.36x = 153,907,856.24 × 61,971,000.40
  4. Step 4: Simplify right side
    111,532,321.36x = 9,537,823,820,612,182
  5. Step 5: Solve for x
    x = 9,537,823,820,612,182/111,532,321.36
  6. Step 6: Final answer
    x = 85,516,231.57

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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.