Home / 647,185,825.60-970,778,738.40-374,416,187.20

Finding the Fourth Proportional to 647,185,825.60, 970,778,738.40 and 374,416,187.20

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Solution

The fourth proportional to 647,185,825.60, 970,778,738.40 and 374,416,187.20 is: 561,624,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,185,825.60 : 970,778,738.40 = 374,416,187.20 : x
  2. Step 2: Convert to fraction form
    647,185,825.60/970,778,738.40 = 374,416,187.20/x
  3. Step 3: Cross multiply
    647,185,825.60x = 970,778,738.40 × 374,416,187.20
  4. Step 4: Simplify right side
    647,185,825.60x = 363,475,273,846,554,176
  5. Step 5: Solve for x
    x = 363,475,273,846,554,176/647,185,825.60
  6. Step 6: Final answer
    x = 561,624,280.80

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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.