Home / 1,189,207,313.60-1,783,810,970.40-327,564,305.60

Finding the Fourth Proportional to 1,189,207,313.60, 1,783,810,970.40 and 327,564,305.60

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Solution

The fourth proportional to 1,189,207,313.60, 1,783,810,970.40 and 327,564,305.60 is: 491,346,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,207,313.60 : 1,783,810,970.40 = 327,564,305.60 : x
  2. Step 2: Convert to fraction form
    1,189,207,313.60/1,783,810,970.40 = 327,564,305.60/x
  3. Step 3: Cross multiply
    1,189,207,313.60x = 1,783,810,970.40 × 327,564,305.60
  4. Step 4: Simplify right side
    1,189,207,313.60x = 584,312,801,840,738,176
  5. Step 5: Solve for x
    x = 584,312,801,840,738,176/1,189,207,313.60
  6. Step 6: Final answer
    x = 491,346,458.40

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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.