Home / 639,576,075.40-959,364,113.10-629,372,408.20

Finding the Fourth Proportional to 639,576,075.40, 959,364,113.10 and 629,372,408.20

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Solution

The fourth proportional to 639,576,075.40, 959,364,113.10 and 629,372,408.20 is: 944,058,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,576,075.40 : 959,364,113.10 = 629,372,408.20 : x
  2. Step 2: Convert to fraction form
    639,576,075.40/959,364,113.10 = 629,372,408.20/x
  3. Step 3: Cross multiply
    639,576,075.40x = 959,364,113.10 × 629,372,408.20
  4. Step 4: Simplify right side
    639,576,075.40x = 603,797,302,202,404,224
  5. Step 5: Solve for x
    x = 603,797,302,202,404,224/639,576,075.40
  6. Step 6: Final answer
    x = 944,058,612.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.