Home / 641,588,549.76-885,393,899.28-348,233,117.76

Finding the Fourth Proportional to 641,588,549.76, 885,393,899.28 and 348,233,117.76

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Solution

The fourth proportional to 641,588,549.76, 885,393,899.28 and 348,233,117.76 is: 480,562,625.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,588,549.76 : 885,393,899.28 = 348,233,117.76 : x
  2. Step 2: Convert to fraction form
    641,588,549.76/885,393,899.28 = 348,233,117.76/x
  3. Step 3: Cross multiply
    641,588,549.76x = 885,393,899.28 × 348,233,117.76
  4. Step 4: Simplify right side
    641,588,549.76x = 308,323,477,991,957,824
  5. Step 5: Solve for x
    x = 308,323,477,991,957,824/641,588,549.76
  6. Step 6: Final answer
    x = 480,562,625.54

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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.