Home / 680,366,792.72-1,019,721,082.44-352,661,638.88

Finding the Fourth Proportional to 680,366,792.72, 1,019,721,082.44 and 352,661,638.88

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Solution

The fourth proportional to 680,366,792.72, 1,019,721,082.44 and 352,661,638.88 is: 528,562,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,366,792.72 : 1,019,721,082.44 = 352,661,638.88 : x
  2. Step 2: Convert to fraction form
    680,366,792.72/1,019,721,082.44 = 352,661,638.88/x
  3. Step 3: Cross multiply
    680,366,792.72x = 1,019,721,082.44 × 352,661,638.88
  4. Step 4: Simplify right side
    680,366,792.72x = 359,616,508,133,777,984
  5. Step 5: Solve for x
    x = 359,616,508,133,777,984/680,366,792.72
  6. Step 6: Final answer
    x = 528,562,698.80

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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.