Home / 1,086,009,062.80-1,629,013,594.20-395,938,829.20

Finding the Fourth Proportional to 1,086,009,062.80, 1,629,013,594.20 and 395,938,829.20

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Solution

The fourth proportional to 1,086,009,062.80, 1,629,013,594.20 and 395,938,829.20 is: 593,908,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,009,062.80 : 1,629,013,594.20 = 395,938,829.20 : x
  2. Step 2: Convert to fraction form
    1,086,009,062.80/1,629,013,594.20 = 395,938,829.20/x
  3. Step 3: Cross multiply
    1,086,009,062.80x = 1,629,013,594.20 × 395,938,829.20
  4. Step 4: Simplify right side
    1,086,009,062.80x = 644,989,735,238,431,872
  5. Step 5: Solve for x
    x = 644,989,735,238,431,872/1,086,009,062.80
  6. Step 6: Final answer
    x = 593,908,243.80

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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.