Home / 258,974,448.40-388,461,672.60-198,508,272.40

Finding the Fourth Proportional to 258,974,448.40, 388,461,672.60 and 198,508,272.40

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Solution

The fourth proportional to 258,974,448.40, 388,461,672.60 and 198,508,272.40 is: 297,762,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,974,448.40 : 388,461,672.60 = 198,508,272.40 : x
  2. Step 2: Convert to fraction form
    258,974,448.40/388,461,672.60 = 198,508,272.40/x
  3. Step 3: Cross multiply
    258,974,448.40x = 388,461,672.60 × 198,508,272.40
  4. Step 4: Simplify right side
    258,974,448.40x = 77,112,855,521,440,416
  5. Step 5: Solve for x
    x = 77,112,855,521,440,416/258,974,448.40
  6. Step 6: Final answer
    x = 297,762,408.60

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