Home / 111,459,976.87-153,819,878.30-61,900,578.31

Finding the Fourth Proportional to 111,459,976.87, 153,819,878.30 and 61,900,578.31

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Solution

The fourth proportional to 111,459,976.87, 153,819,878.30 and 61,900,578.31 is: 85,425,636.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,459,976.87 : 153,819,878.30 = 61,900,578.31 : x
  2. Step 2: Convert to fraction form
    111,459,976.87/153,819,878.30 = 61,900,578.31/x
  3. Step 3: Cross multiply
    111,459,976.87x = 153,819,878.30 × 61,900,578.31
  4. Step 4: Simplify right side
    111,459,976.87x = 9,521,539,422,343,820
  5. Step 5: Solve for x
    x = 9,521,539,422,343,820/111,459,976.87
  6. Step 6: Final answer
    x = 85,425,636.09

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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.