Home / 438,620,108.80-657,930,163.20-352,526,666.80

Finding the Fourth Proportional to 438,620,108.80, 657,930,163.20 and 352,526,666.80

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Solution

The fourth proportional to 438,620,108.80, 657,930,163.20 and 352,526,666.80 is: 528,790,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,620,108.80 : 657,930,163.20 = 352,526,666.80 : x
  2. Step 2: Convert to fraction form
    438,620,108.80/657,930,163.20 = 352,526,666.80/x
  3. Step 3: Cross multiply
    438,620,108.80x = 657,930,163.20 × 352,526,666.80
  4. Step 4: Simplify right side
    438,620,108.80x = 231,937,927,420,076,032
  5. Step 5: Solve for x
    x = 231,937,927,420,076,032/438,620,108.80
  6. Step 6: Final answer
    x = 528,790,000.20

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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.