Home / 262,626,130.60-393,939,195.90-80,929,004.20

Finding the Fourth Proportional to 262,626,130.60, 393,939,195.90 and 80,929,004.20

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Solution

The fourth proportional to 262,626,130.60, 393,939,195.90 and 80,929,004.20 is: 121,393,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,626,130.60 : 393,939,195.90 = 80,929,004.20 : x
  2. Step 2: Convert to fraction form
    262,626,130.60/393,939,195.90 = 80,929,004.20/x
  3. Step 3: Cross multiply
    262,626,130.60x = 393,939,195.90 × 80,929,004.20
  4. Step 4: Simplify right side
    262,626,130.60x = 31,881,106,839,535,724
  5. Step 5: Solve for x
    x = 31,881,106,839,535,724/262,626,130.60
  6. Step 6: Final answer
    x = 121,393,506.30

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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.