Home / 379,675,315.73-523,948,075.80-210,129,883.31

Finding the Fourth Proportional to 379,675,315.73, 523,948,075.80 and 210,129,883.31

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Solution

The fourth proportional to 379,675,315.73, 523,948,075.80 and 210,129,883.31 is: 289,977,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,675,315.73 : 523,948,075.80 = 210,129,883.31 : x
  2. Step 2: Convert to fraction form
    379,675,315.73/523,948,075.80 = 210,129,883.31/x
  3. Step 3: Cross multiply
    379,675,315.73x = 523,948,075.80 × 210,129,883.31
  4. Step 4: Simplify right side
    379,675,315.73x = 110,097,148,028,874,912
  5. Step 5: Solve for x
    x = 110,097,148,028,874,912/379,675,315.73
  6. Step 6: Final answer
    x = 289,977,102.72

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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.