Home / 670,783,749.78-925,712,125.91-373,444,876.87

Finding the Fourth Proportional to 670,783,749.78, 925,712,125.91 and 373,444,876.87

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Solution

The fourth proportional to 670,783,749.78, 925,712,125.91 and 373,444,876.87 is: 515,370,938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,783,749.78 : 925,712,125.91 = 373,444,876.87 : x
  2. Step 2: Convert to fraction form
    670,783,749.78/925,712,125.91 = 373,444,876.87/x
  3. Step 3: Cross multiply
    670,783,749.78x = 925,712,125.91 × 373,444,876.87
  4. Step 4: Simplify right side
    670,783,749.78x = 345,702,450,877,525,888
  5. Step 5: Solve for x
    x = 345,702,450,877,525,888/670,783,749.78
  6. Step 6: Final answer
    x = 515,370,938.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.