Home / 371,429,072.12-512,561,040.95-212,653,927.35

Finding the Fourth Proportional to 371,429,072.12, 512,561,040.95 and 212,653,927.35

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Solution

The fourth proportional to 371,429,072.12, 512,561,040.95 and 212,653,927.35 is: 293,456,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,429,072.12 : 512,561,040.95 = 212,653,927.35 : x
  2. Step 2: Convert to fraction form
    371,429,072.12/512,561,040.95 = 212,653,927.35/x
  3. Step 3: Cross multiply
    371,429,072.12x = 512,561,040.95 × 212,653,927.35
  4. Step 4: Simplify right side
    371,429,072.12x = 108,998,118,365,153,296
  5. Step 5: Solve for x
    x = 108,998,118,365,153,296/371,429,072.12
  6. Step 6: Final answer
    x = 293,456,076.94

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Why These Related Problems?

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