Home / 115,877,243.64-160,052,065.38-86,638,245.60

Finding the Fourth Proportional to 115,877,243.64, 160,052,065.38 and 86,638,245.60

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Solution

The fourth proportional to 115,877,243.64, 160,052,065.38 and 86,638,245.60 is: 119,666,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,877,243.64 : 160,052,065.38 = 86,638,245.60 : x
  2. Step 2: Convert to fraction form
    115,877,243.64/160,052,065.38 = 86,638,245.60/x
  3. Step 3: Cross multiply
    115,877,243.64x = 160,052,065.38 × 86,638,245.60
  4. Step 4: Simplify right side
    115,877,243.64x = 13,866,630,149,179,696
  5. Step 5: Solve for x
    x = 13,866,630,149,179,696/115,877,243.64
  6. Step 6: Final answer
    x = 119,666,551.55

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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.