Home / 912,070,382.47-1,258,623,407.87-494,373,699.70

Finding the Fourth Proportional to 912,070,382.47, 1,258,623,407.87 and 494,373,699.70

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Solution

The fourth proportional to 912,070,382.47, 1,258,623,407.87 and 494,373,699.70 is: 682,217,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,070,382.47 : 1,258,623,407.87 = 494,373,699.70 : x
  2. Step 2: Convert to fraction form
    912,070,382.47/1,258,623,407.87 = 494,373,699.70/x
  3. Step 3: Cross multiply
    912,070,382.47x = 1,258,623,407.87 × 494,373,699.70
  4. Step 4: Simplify right side
    912,070,382.47x = 622,230,310,675,242,112
  5. Step 5: Solve for x
    x = 622,230,310,675,242,112/912,070,382.47
  6. Step 6: Final answer
    x = 682,217,428.21

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Double scale
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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.