Home / 809,502,688.88-1,117,114,071-438,224,707.76

Finding the Fourth Proportional to 809,502,688.88, 1,117,114,071 and 438,224,707.76

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Solution

The fourth proportional to 809,502,688.88, 1,117,114,071 and 438,224,707.76 is: 604,750,291.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,502,688.88 : 1,117,114,071 = 438,224,707.76 : x
  2. Step 2: Convert to fraction form
    809,502,688.88/1,117,114,071 = 438,224,707.76/x
  3. Step 3: Cross multiply
    809,502,688.88x = 1,117,114,071 × 438,224,707.76
  4. Step 4: Simplify right side
    809,502,688.88x = 489,546,987,298,558,912
  5. Step 5: Solve for x
    x = 489,546,987,298,558,912/809,502,688.88
  6. Step 6: Final answer
    x = 604,750,291.78

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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.