Home / 403,358,600.90-605,037,901.35-394,400,648.90

Finding the Fourth Proportional to 403,358,600.90, 605,037,901.35 and 394,400,648.90

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Solution

The fourth proportional to 403,358,600.90, 605,037,901.35 and 394,400,648.90 is: 591,600,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,358,600.90 : 605,037,901.35 = 394,400,648.90 : x
  2. Step 2: Convert to fraction form
    403,358,600.90/605,037,901.35 = 394,400,648.90/x
  3. Step 3: Cross multiply
    403,358,600.90x = 605,037,901.35 × 394,400,648.90
  4. Step 4: Simplify right side
    403,358,600.90x = 238,627,340,901,534,176
  5. Step 5: Solve for x
    x = 238,627,340,901,534,176/403,358,600.90
  6. Step 6: Final answer
    x = 591,600,973.35

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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.