Home / 379,785,041.09-524,125,321.90-212,519,842.03

Finding the Fourth Proportional to 379,785,041.09, 524,125,321.90 and 212,519,842.03

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Solution

The fourth proportional to 379,785,041.09, 524,125,321.90 and 212,519,842.03 is: 293,289,673.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,785,041.09 : 524,125,321.90 = 212,519,842.03 : x
  2. Step 2: Convert to fraction form
    379,785,041.09/524,125,321.90 = 212,519,842.03/x
  3. Step 3: Cross multiply
    379,785,041.09x = 524,125,321.90 × 212,519,842.03
  4. Step 4: Simplify right side
    379,785,041.09x = 111,387,030,611,490,272
  5. Step 5: Solve for x
    x = 111,387,030,611,490,272/379,785,041.09
  6. Step 6: Final answer
    x = 293,289,673.27

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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.