Home / 138,141,190.32-190,629,845.04-76,260,200.16

Finding the Fourth Proportional to 138,141,190.32, 190,629,845.04 and 76,260,200.16

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Solution

The fourth proportional to 138,141,190.32, 190,629,845.04 and 76,260,200.16 is: 105,236,317.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,141,190.32 : 190,629,845.04 = 76,260,200.16 : x
  2. Step 2: Convert to fraction form
    138,141,190.32/190,629,845.04 = 76,260,200.16/x
  3. Step 3: Cross multiply
    138,141,190.32x = 190,629,845.04 × 76,260,200.16
  4. Step 4: Simplify right side
    138,141,190.32x = 14,537,470,139,220,182
  5. Step 5: Solve for x
    x = 14,537,470,139,220,182/138,141,190.32
  6. Step 6: Final answer
    x = 105,236,317.32

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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.