Home / 685,093,774.96-945,430,345.68-371,827,993.76

Finding the Fourth Proportional to 685,093,774.96, 945,430,345.68 and 371,827,993.76

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Solution

The fourth proportional to 685,093,774.96, 945,430,345.68 and 371,827,993.76 is: 513,123,139.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,093,774.96 : 945,430,345.68 = 371,827,993.76 : x
  2. Step 2: Convert to fraction form
    685,093,774.96/945,430,345.68 = 371,827,993.76/x
  3. Step 3: Cross multiply
    685,093,774.96x = 945,430,345.68 × 371,827,993.76
  4. Step 4: Simplify right side
    685,093,774.96x = 351,537,468,674,017,664
  5. Step 5: Solve for x
    x = 351,537,468,674,017,664/685,093,774.96
  6. Step 6: Final answer
    x = 513,123,139.52

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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.