Home / 211,809,902.84-316,785,554.46-188,630,111.78

Finding the Fourth Proportional to 211,809,902.84, 316,785,554.46 and 188,630,111.78

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Solution

The fourth proportional to 211,809,902.84, 316,785,554.46 and 188,630,111.78 is: 282,117,567.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,809,902.84 : 316,785,554.46 = 188,630,111.78 : x
  2. Step 2: Convert to fraction form
    211,809,902.84/316,785,554.46 = 188,630,111.78/x
  3. Step 3: Cross multiply
    211,809,902.84x = 316,785,554.46 × 188,630,111.78
  4. Step 4: Simplify right side
    211,809,902.84x = 59,755,294,548,079,072
  5. Step 5: Solve for x
    x = 59,755,294,548,079,072/211,809,902.84
  6. Step 6: Final answer
    x = 282,117,567.44

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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.