Home / 126,753,422.40-190,130,133.60-40,494,643.20

Finding the Fourth Proportional to 126,753,422.40, 190,130,133.60 and 40,494,643.20

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Solution

The fourth proportional to 126,753,422.40, 190,130,133.60 and 40,494,643.20 is: 60,741,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,753,422.40 : 190,130,133.60 = 40,494,643.20 : x
  2. Step 2: Convert to fraction form
    126,753,422.40/190,130,133.60 = 40,494,643.20/x
  3. Step 3: Cross multiply
    126,753,422.40x = 190,130,133.60 × 40,494,643.20
  4. Step 4: Simplify right side
    126,753,422.40x = 7,699,251,921,700,332
  5. Step 5: Solve for x
    x = 7,699,251,921,700,332/126,753,422.40
  6. Step 6: Final answer
    x = 60,741,964.80

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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.