Home / 1,253,157,748.45-1,729,347,578.87-680,935,792.94

Finding the Fourth Proportional to 1,253,157,748.45, 1,729,347,578.87 and 680,935,792.94

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Solution

The fourth proportional to 1,253,157,748.45, 1,729,347,578.87 and 680,935,792.94 is: 939,685,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,157,748.45 : 1,729,347,578.87 = 680,935,792.94 : x
  2. Step 2: Convert to fraction form
    1,253,157,748.45/1,729,347,578.87 = 680,935,792.94/x
  3. Step 3: Cross multiply
    1,253,157,748.45x = 1,729,347,578.87 × 680,935,792.94
  4. Step 4: Simplify right side
    1,253,157,748.45x = 1,177,574,664,886,712,576
  5. Step 5: Solve for x
    x = 1,177,574,664,886,712,576/1,253,157,748.45
  6. Step 6: Final answer
    x = 939,685,898.56

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1.5x scale

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.