Home / 640,975,507.20-884,546,200.26-347,620,075.20

Finding the Fourth Proportional to 640,975,507.20, 884,546,200.26 and 347,620,075.20

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Solution

The fourth proportional to 640,975,507.20, 884,546,200.26 and 347,620,075.20 is: 479,715,703.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,975,507.20 : 884,546,200.26 = 347,620,075.20 : x
  2. Step 2: Convert to fraction form
    640,975,507.20/884,546,200.26 = 347,620,075.20/x
  3. Step 3: Cross multiply
    640,975,507.20x = 884,546,200.26 × 347,620,075.20
  4. Step 4: Simplify right side
    640,975,507.20x = 307,486,016,652,255,424
  5. Step 5: Solve for x
    x = 307,486,016,652,255,424/640,975,507.20
  6. Step 6: Final answer
    x = 479,715,703.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.