Home / 438,619,938.80-657,929,908.20-352,526,496.80

Finding the Fourth Proportional to 438,619,938.80, 657,929,908.20 and 352,526,496.80

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Solution

The fourth proportional to 438,619,938.80, 657,929,908.20 and 352,526,496.80 is: 528,789,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,619,938.80 : 657,929,908.20 = 352,526,496.80 : x
  2. Step 2: Convert to fraction form
    438,619,938.80/657,929,908.20 = 352,526,496.80/x
  3. Step 3: Cross multiply
    438,619,938.80x = 657,929,908.20 × 352,526,496.80
  4. Step 4: Simplify right side
    438,619,938.80x = 231,937,725,677,691,616
  5. Step 5: Solve for x
    x = 231,937,725,677,691,616/438,619,938.80
  6. Step 6: Final answer
    x = 528,789,745.20

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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.