Home / 618,121,683.36-853,014,712.32-339,663,278.88

Finding the Fourth Proportional to 618,121,683.36, 853,014,712.32 and 339,663,278.88

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Solution

The fourth proportional to 618,121,683.36, 853,014,712.32 and 339,663,278.88 is: 468,739,055.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,121,683.36 : 853,014,712.32 = 339,663,278.88 : x
  2. Step 2: Convert to fraction form
    618,121,683.36/853,014,712.32 = 339,663,278.88/x
  3. Step 3: Cross multiply
    618,121,683.36x = 853,014,712.32 × 339,663,278.88
  4. Step 4: Simplify right side
    618,121,683.36x = 289,737,774,119,491,136
  5. Step 5: Solve for x
    x = 289,737,774,119,491,136/618,121,683.36
  6. Step 6: Final answer
    x = 468,739,055.62

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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.