Home / 313,726,815.20-470,590,222.80-141,539,931.20

Finding the Fourth Proportional to 313,726,815.20, 470,590,222.80 and 141,539,931.20

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Solution

The fourth proportional to 313,726,815.20, 470,590,222.80 and 141,539,931.20 is: 212,309,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,726,815.20 : 470,590,222.80 = 141,539,931.20 : x
  2. Step 2: Convert to fraction form
    313,726,815.20/470,590,222.80 = 141,539,931.20/x
  3. Step 3: Cross multiply
    313,726,815.20x = 470,590,222.80 × 141,539,931.20
  4. Step 4: Simplify right side
    313,726,815.20x = 66,607,307,758,504,664
  5. Step 5: Solve for x
    x = 66,607,307,758,504,664/313,726,815.20
  6. Step 6: Final answer
    x = 212,309,896.80

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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.