Home / 726,346,136.40-1,089,519,204.60-289,714,210.80

Finding the Fourth Proportional to 726,346,136.40, 1,089,519,204.60 and 289,714,210.80

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Solution

The fourth proportional to 726,346,136.40, 1,089,519,204.60 and 289,714,210.80 is: 434,571,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,346,136.40 : 1,089,519,204.60 = 289,714,210.80 : x
  2. Step 2: Convert to fraction form
    726,346,136.40/1,089,519,204.60 = 289,714,210.80/x
  3. Step 3: Cross multiply
    726,346,136.40x = 1,089,519,204.60 × 289,714,210.80
  4. Step 4: Simplify right side
    726,346,136.40x = 315,649,196,512,132,736
  5. Step 5: Solve for x
    x = 315,649,196,512,132,736/726,346,136.40
  6. Step 6: Final answer
    x = 434,571,316.20

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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.