Home / 1,385,446,880.80-2,075,272,983.60-649,145,216.80

Finding the Fourth Proportional to 1,385,446,880.80, 2,075,272,983.60 and 649,145,216.80

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Solution

The fourth proportional to 1,385,446,880.80, 2,075,272,983.60 and 649,145,216.80 is: 972,360,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,446,880.80 : 2,075,272,983.60 = 649,145,216.80 : x
  2. Step 2: Convert to fraction form
    1,385,446,880.80/2,075,272,983.60 = 649,145,216.80/x
  3. Step 3: Cross multiply
    1,385,446,880.80x = 2,075,272,983.60 × 649,145,216.80
  4. Step 4: Simplify right side
    1,385,446,880.80x = 1,347,153,530,858,204,672
  5. Step 5: Solve for x
    x = 1,347,153,530,858,204,672/1,385,446,880.80
  6. Step 6: Final answer
    x = 972,360,290.05

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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.