Home / 938,505,046.40-1,408,261,454.40-393,301,692.80

Finding the Fourth Proportional to 938,505,046.40, 1,408,261,454.40 and 393,301,692.80

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Solution

The fourth proportional to 938,505,046.40, 1,408,261,454.40 and 393,301,692.80 is: 590,163,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,505,046.40 : 1,408,261,454.40 = 393,301,692.80 : x
  2. Step 2: Convert to fraction form
    938,505,046.40/1,408,261,454.40 = 393,301,692.80/x
  3. Step 3: Cross multiply
    938,505,046.40x = 1,408,261,454.40 × 393,301,692.80
  4. Step 4: Simplify right side
    938,505,046.40x = 553,871,613,920,510,080
  5. Step 5: Solve for x
    x = 553,871,613,920,510,080/938,505,046.40
  6. Step 6: Final answer
    x = 590,163,703.48

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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.