Home / 212,107,076.64-318,160,984.02-66,551,808.32

Finding the Fourth Proportional to 212,107,076.64, 318,160,984.02 and 66,551,808.32

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Solution

The fourth proportional to 212,107,076.64, 318,160,984.02 and 66,551,808.32 is: 99,827,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,107,076.64 : 318,160,984.02 = 66,551,808.32 : x
  2. Step 2: Convert to fraction form
    212,107,076.64/318,160,984.02 = 66,551,808.32/x
  3. Step 3: Cross multiply
    212,107,076.64x = 318,160,984.02 × 66,551,808.32
  4. Step 4: Simplify right side
    212,107,076.64x = 21,174,188,823,401,620
  5. Step 5: Solve for x
    x = 21,174,188,823,401,620/212,107,076.64
  6. Step 6: Final answer
    x = 99,827,828.28

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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.