Home / 131,819,762.40-197,729,643.60-126,444,991.20

Finding the Fourth Proportional to 131,819,762.40, 197,729,643.60 and 126,444,991.20

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Solution

The fourth proportional to 131,819,762.40, 197,729,643.60 and 126,444,991.20 is: 189,667,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,819,762.40 : 197,729,643.60 = 126,444,991.20 : x
  2. Step 2: Convert to fraction form
    131,819,762.40/197,729,643.60 = 126,444,991.20/x
  3. Step 3: Cross multiply
    131,819,762.40x = 197,729,643.60 × 126,444,991.20
  4. Step 4: Simplify right side
    131,819,762.40x = 25,001,923,044,981,136
  5. Step 5: Solve for x
    x = 25,001,923,044,981,136/131,819,762.40
  6. Step 6: Final answer
    x = 189,667,486.80

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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.