Home / 429,801,912.45-644,839,156.04-153,447,201.09

Finding the Fourth Proportional to 429,801,912.45, 644,839,156.04 and 153,447,201.09

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Solution

The fourth proportional to 429,801,912.45, 644,839,156.04 and 153,447,201.09 is: 230,219,458.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,801,912.45 : 644,839,156.04 = 153,447,201.09 : x
  2. Step 2: Convert to fraction form
    429,801,912.45/644,839,156.04 = 153,447,201.09/x
  3. Step 3: Cross multiply
    429,801,912.45x = 644,839,156.04 × 153,447,201.09
  4. Step 4: Simplify right side
    429,801,912.45x = 98,948,763,646,808,528
  5. Step 5: Solve for x
    x = 98,948,763,646,808,528/429,801,912.45
  6. Step 6: Final answer
    x = 230,219,458.73

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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.