Home / 347,702,406.80-521,553,610.20-209,952,899.60

Finding the Fourth Proportional to 347,702,406.80, 521,553,610.20 and 209,952,899.60

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Solution

The fourth proportional to 347,702,406.80, 521,553,610.20 and 209,952,899.60 is: 314,929,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,702,406.80 : 521,553,610.20 = 209,952,899.60 : x
  2. Step 2: Convert to fraction form
    347,702,406.80/521,553,610.20 = 209,952,899.60/x
  3. Step 3: Cross multiply
    347,702,406.80x = 521,553,610.20 × 209,952,899.60
  4. Step 4: Simplify right side
    347,702,406.80x = 109,501,692,758,338,128
  5. Step 5: Solve for x
    x = 109,501,692,758,338,128/347,702,406.80
  6. Step 6: Final answer
    x = 314,929,349.40

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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.