Home / 1,013,615,450.54-1,398,789,321.63-550,041,434.54

Finding the Fourth Proportional to 1,013,615,450.54, 1,398,789,321.63 and 550,041,434.54

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Solution

The fourth proportional to 1,013,615,450.54, 1,398,789,321.63 and 550,041,434.54 is: 759,057,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,615,450.54 : 1,398,789,321.63 = 550,041,434.54 : x
  2. Step 2: Convert to fraction form
    1,013,615,450.54/1,398,789,321.63 = 550,041,434.54/x
  3. Step 3: Cross multiply
    1,013,615,450.54x = 1,398,789,321.63 × 550,041,434.54
  4. Step 4: Simplify right side
    1,013,615,450.54x = 769,392,085,088,598,656
  5. Step 5: Solve for x
    x = 769,392,085,088,598,656/1,013,615,450.54
  6. Step 6: Final answer
    x = 759,057,179.60

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Double scale
Find fourth proportional to 1,013,615,451.54, 1,398,789,323.01 and 550,041,435.54
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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.