Home / 138,158,328.11-190,589,663.57-82,364,434.29

Finding the Fourth Proportional to 138,158,328.11, 190,589,663.57 and 82,364,434.29

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Solution

The fourth proportional to 138,158,328.11, 190,589,663.57 and 82,364,434.29 is: 113,621,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,158,328.11 : 190,589,663.57 = 82,364,434.29 : x
  2. Step 2: Convert to fraction form
    138,158,328.11/190,589,663.57 = 82,364,434.29/x
  3. Step 3: Cross multiply
    138,158,328.11x = 190,589,663.57 × 82,364,434.29
  4. Step 4: Simplify right side
    138,158,328.11x = 15,697,809,821,052,650
  5. Step 5: Solve for x
    x = 15,697,809,821,052,650/138,158,328.11
  6. Step 6: Final answer
    x = 113,621,886.11

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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.