Home / 489,139,750.16-674,755,580.04-290,760,140.24

Finding the Fourth Proportional to 489,139,750.16, 674,755,580.04 and 290,760,140.24

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Solution

The fourth proportional to 489,139,750.16, 674,755,580.04 and 290,760,140.24 is: 401,096,061.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,139,750.16 : 674,755,580.04 = 290,760,140.24 : x
  2. Step 2: Convert to fraction form
    489,139,750.16/674,755,580.04 = 290,760,140.24/x
  3. Step 3: Cross multiply
    489,139,750.16x = 674,755,580.04 × 290,760,140.24
  4. Step 4: Simplify right side
    489,139,750.16x = 196,192,027,080,152,928
  5. Step 5: Solve for x
    x = 196,192,027,080,152,928/489,139,750.16
  6. Step 6: Final answer
    x = 401,096,061.03

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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.