Home / 72,763,096.80-109,144,645.20-66,066,940.20

Finding the Fourth Proportional to 72,763,096.80, 109,144,645.20 and 66,066,940.20

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Solution

The fourth proportional to 72,763,096.80, 109,144,645.20 and 66,066,940.20 is: 99,100,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,763,096.80 : 109,144,645.20 = 66,066,940.20 : x
  2. Step 2: Convert to fraction form
    72,763,096.80/109,144,645.20 = 66,066,940.20/x
  3. Step 3: Cross multiply
    72,763,096.80x = 109,144,645.20 × 66,066,940.20
  4. Step 4: Simplify right side
    72,763,096.80x = 7,210,852,747,578,618
  5. Step 5: Solve for x
    x = 7,210,852,747,578,618/72,763,096.80
  6. Step 6: Final answer
    x = 99,100,410.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.