Home / 1,086,734,075.40-1,629,303,951.60-431,361,034.20

Finding the Fourth Proportional to 1,086,734,075.40, 1,629,303,951.60 and 431,361,034.20

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Solution

The fourth proportional to 1,086,734,075.40, 1,629,303,951.60 and 431,361,034.20 is: 646,725,131.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,734,075.40 : 1,629,303,951.60 = 431,361,034.20 : x
  2. Step 2: Convert to fraction form
    1,086,734,075.40/1,629,303,951.60 = 431,361,034.20/x
  3. Step 3: Cross multiply
    1,086,734,075.40x = 1,629,303,951.60 × 431,361,034.20
  4. Step 4: Simplify right side
    1,086,734,075.40x = 702,818,237,588,322,688
  5. Step 5: Solve for x
    x = 702,818,237,588,322,688/1,086,734,075.40
  6. Step 6: Final answer
    x = 646,725,131.29

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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.