Home / 217,277,135.40-325,803,728.70-80,892,316.20

Finding the Fourth Proportional to 217,277,135.40, 325,803,728.70 and 80,892,316.20

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Solution

The fourth proportional to 217,277,135.40, 325,803,728.70 and 80,892,316.20 is: 121,296,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,277,135.40 : 325,803,728.70 = 80,892,316.20 : x
  2. Step 2: Convert to fraction form
    217,277,135.40/325,803,728.70 = 80,892,316.20/x
  3. Step 3: Cross multiply
    217,277,135.40x = 325,803,728.70 × 80,892,316.20
  4. Step 4: Simplify right side
    217,277,135.40x = 26,355,018,241,139,416
  5. Step 5: Solve for x
    x = 26,355,018,241,139,416/217,277,135.40
  6. Step 6: Final answer
    x = 121,296,786.21

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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.