Home / 688,353,617.58-1,032,529,135.94-215,688,847.92

Finding the Fourth Proportional to 688,353,617.58, 1,032,529,135.94 and 215,688,847.92

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Solution

The fourth proportional to 688,353,617.58, 1,032,529,135.94 and 215,688,847.92 is: 323,532,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,353,617.58 : 1,032,529,135.94 = 215,688,847.92 : x
  2. Step 2: Convert to fraction form
    688,353,617.58/1,032,529,135.94 = 215,688,847.92/x
  3. Step 3: Cross multiply
    688,353,617.58x = 1,032,529,135.94 × 215,688,847.92
  4. Step 4: Simplify right side
    688,353,617.58x = 222,705,019,774,731,680
  5. Step 5: Solve for x
    x = 222,705,019,774,731,680/688,353,617.58
  6. Step 6: Final answer
    x = 323,532,867.54

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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.