Home / 403,358,117.90-605,037,176.85-394,400,165.90

Finding the Fourth Proportional to 403,358,117.90, 605,037,176.85 and 394,400,165.90

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Solution

The fourth proportional to 403,358,117.90, 605,037,176.85 and 394,400,165.90 is: 591,600,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,358,117.90 : 605,037,176.85 = 394,400,165.90 : x
  2. Step 2: Convert to fraction form
    403,358,117.90/605,037,176.85 = 394,400,165.90/x
  3. Step 3: Cross multiply
    403,358,117.90x = 605,037,176.85 × 394,400,165.90
  4. Step 4: Simplify right side
    403,358,117.90x = 238,626,762,925,307,648
  5. Step 5: Solve for x
    x = 238,626,762,925,307,648/403,358,117.90
  6. Step 6: Final answer
    x = 591,600,248.85

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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.