Home / 809,145,076.89-1,116,620,206.47-437,867,108.40

Finding the Fourth Proportional to 809,145,076.89, 1,116,620,206.47 and 437,867,108.40

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Solution

The fourth proportional to 809,145,076.89, 1,116,620,206.47 and 437,867,108.40 is: 604,256,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,145,076.89 : 1,116,620,206.47 = 437,867,108.40 : x
  2. Step 2: Convert to fraction form
    809,145,076.89/1,116,620,206.47 = 437,867,108.40/x
  3. Step 3: Cross multiply
    809,145,076.89x = 1,116,620,206.47 × 437,867,108.40
  4. Step 4: Simplify right side
    809,145,076.89x = 488,931,260,988,029,888
  5. Step 5: Solve for x
    x = 488,931,260,988,029,888/809,145,076.89
  6. Step 6: Final answer
    x = 604,256,609.79

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