Home / 216,516,758.40-324,775,137.60-147,642,004.80

Finding the Fourth Proportional to 216,516,758.40, 324,775,137.60 and 147,642,004.80

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Solution

The fourth proportional to 216,516,758.40, 324,775,137.60 and 147,642,004.80 is: 221,463,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,516,758.40 : 324,775,137.60 = 147,642,004.80 : x
  2. Step 2: Convert to fraction form
    216,516,758.40/324,775,137.60 = 147,642,004.80/x
  3. Step 3: Cross multiply
    216,516,758.40x = 324,775,137.60 × 147,642,004.80
  4. Step 4: Simplify right side
    216,516,758.40x = 47,950,452,424,459,864
  5. Step 5: Solve for x
    x = 47,950,452,424,459,864/216,516,758.40
  6. Step 6: Final answer
    x = 221,463,007.20

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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.