Home / 127,252,380.64-190,700,643.12-68,833,936.48

Finding the Fourth Proportional to 127,252,380.64, 190,700,643.12 and 68,833,936.48

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Solution

The fourth proportional to 127,252,380.64, 190,700,643.12 and 68,833,936.48 is: 103,154,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,252,380.64 : 190,700,643.12 = 68,833,936.48 : x
  2. Step 2: Convert to fraction form
    127,252,380.64/190,700,643.12 = 68,833,936.48/x
  3. Step 3: Cross multiply
    127,252,380.64x = 190,700,643.12 × 68,833,936.48
  4. Step 4: Simplify right side
    127,252,380.64x = 13,126,675,955,217,230
  5. Step 5: Solve for x
    x = 13,126,675,955,217,230/127,252,380.64
  6. Step 6: Final answer
    x = 103,154,659.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.