Home / 874,802,168.40-1,312,392,209.40-261,448,395.60

Finding the Fourth Proportional to 874,802,168.40, 1,312,392,209.40 and 261,448,395.60

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Solution

The fourth proportional to 874,802,168.40, 1,312,392,209.40 and 261,448,395.60 is: 392,229,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,802,168.40 : 1,312,392,209.40 = 261,448,395.60 : x
  2. Step 2: Convert to fraction form
    874,802,168.40/1,312,392,209.40 = 261,448,395.60/x
  3. Step 3: Cross multiply
    874,802,168.40x = 1,312,392,209.40 × 261,448,395.60
  4. Step 4: Simplify right side
    874,802,168.40x = 343,122,837,545,569,280
  5. Step 5: Solve for x
    x = 343,122,837,545,569,280/874,802,168.40
  6. Step 6: Final answer
    x = 392,229,066.11

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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.