Home / 912,028,072.10-1,258,600,594.07-494,340,640.34

Finding the Fourth Proportional to 912,028,072.10, 1,258,600,594.07 and 494,340,640.34

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Solution

The fourth proportional to 912,028,072.10, 1,258,600,594.07 and 494,340,640.34 is: 682,191,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,028,072.10 : 1,258,600,594.07 = 494,340,640.34 : x
  2. Step 2: Convert to fraction form
    912,028,072.10/1,258,600,594.07 = 494,340,640.34/x
  3. Step 3: Cross multiply
    912,028,072.10x = 1,258,600,594.07 × 494,340,640.34
  4. Step 4: Simplify right side
    912,028,072.10x = 622,177,423,599,811,072
  5. Step 5: Solve for x
    x = 622,177,423,599,811,072/912,028,072.10
  6. Step 6: Final answer
    x = 682,191,088.89

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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.