Home / 398,642,893.20-598,048,320.60-168,493,510.80

Finding the Fourth Proportional to 398,642,893.20, 598,048,320.60 and 168,493,510.80

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Solution

The fourth proportional to 398,642,893.20, 598,048,320.60 and 168,493,510.80 is: 252,775,762.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,642,893.20 : 598,048,320.60 = 168,493,510.80 : x
  2. Step 2: Convert to fraction form
    398,642,893.20/598,048,320.60 = 168,493,510.80/x
  3. Step 3: Cross multiply
    398,642,893.20x = 598,048,320.60 × 168,493,510.80
  4. Step 4: Simplify right side
    398,642,893.20x = 100,767,261,165,937,968
  5. Step 5: Solve for x
    x = 100,767,261,165,937,968/398,642,893.20
  6. Step 6: Final answer
    x = 252,775,762.18

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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.