Home / 765,562,287.12-1,148,287,883.36-299,136,008.40

Finding the Fourth Proportional to 765,562,287.12, 1,148,287,883.36 and 299,136,008.40

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Solution

The fourth proportional to 765,562,287.12, 1,148,287,883.36 and 299,136,008.40 is: 448,682,308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,562,287.12 : 1,148,287,883.36 = 299,136,008.40 : x
  2. Step 2: Convert to fraction form
    765,562,287.12/1,148,287,883.36 = 299,136,008.40/x
  3. Step 3: Cross multiply
    765,562,287.12x = 1,148,287,883.36 × 299,136,008.40
  4. Step 4: Simplify right side
    765,562,287.12x = 343,494,253,922,395,136
  5. Step 5: Solve for x
    x = 343,494,253,922,395,136/765,562,287.12
  6. Step 6: Final answer
    x = 448,682,308.03

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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.