Home / 1,214,195,738.79-1,675,601,671.38-712,413,059.70

Finding the Fourth Proportional to 1,214,195,738.79, 1,675,601,671.38 and 712,413,059.70

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Solution

The fourth proportional to 1,214,195,738.79, 1,675,601,671.38 and 712,413,059.70 is: 983,136,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,195,738.79 : 1,675,601,671.38 = 712,413,059.70 : x
  2. Step 2: Convert to fraction form
    1,214,195,738.79/1,675,601,671.38 = 712,413,059.70/x
  3. Step 3: Cross multiply
    1,214,195,738.79x = 1,675,601,671.38 × 712,413,059.70
  4. Step 4: Simplify right side
    1,214,195,738.79x = 1,193,720,513,546,259,968
  5. Step 5: Solve for x
    x = 1,193,720,513,546,259,968/1,214,195,738.79
  6. Step 6: Final answer
    x = 983,136,800.28

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Double scale
Find fourth proportional to 1,214,195,739.79, 1,675,601,672.76 and 712,413,060.70
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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.