Home / 416,319,965.32-624,040,500.40-139,708,910.64

Finding the Fourth Proportional to 416,319,965.32, 624,040,500.40 and 139,708,910.64

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Solution

The fourth proportional to 416,319,965.32, 624,040,500.40 and 139,708,910.64 is: 209,415,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,319,965.32 : 624,040,500.40 = 139,708,910.64 : x
  2. Step 2: Convert to fraction form
    416,319,965.32/624,040,500.40 = 139,708,910.64/x
  3. Step 3: Cross multiply
    416,319,965.32x = 624,040,500.40 × 139,708,910.64
  4. Step 4: Simplify right side
    416,319,965.32x = 87,184,018,506,124,464
  5. Step 5: Solve for x
    x = 87,184,018,506,124,464/416,319,965.32
  6. Step 6: Final answer
    x = 209,415,895.87

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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.