Home / 289,588,606.70-434,382,910.05-207,534,116.30

Finding the Fourth Proportional to 289,588,606.70, 434,382,910.05 and 207,534,116.30

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Solution

The fourth proportional to 289,588,606.70, 434,382,910.05 and 207,534,116.30 is: 311,301,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,588,606.70 : 434,382,910.05 = 207,534,116.30 : x
  2. Step 2: Convert to fraction form
    289,588,606.70/434,382,910.05 = 207,534,116.30/x
  3. Step 3: Cross multiply
    289,588,606.70x = 434,382,910.05 × 207,534,116.30
  4. Step 4: Simplify right side
    289,588,606.70x = 90,149,273,373,049,152
  5. Step 5: Solve for x
    x = 90,149,273,373,049,152/289,588,606.70
  6. Step 6: Final answer
    x = 311,301,174.45

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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.