Home / 1,405,332,945.60-1,939,380,674.32-770,248,356.18

Finding the Fourth Proportional to 1,405,332,945.60, 1,939,380,674.32 and 770,248,356.18

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Solution

The fourth proportional to 1,405,332,945.60, 1,939,380,674.32 and 770,248,356.18 is: 1,062,954,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,332,945.60 : 1,939,380,674.32 = 770,248,356.18 : x
  2. Step 2: Convert to fraction form
    1,405,332,945.60/1,939,380,674.32 = 770,248,356.18/x
  3. Step 3: Cross multiply
    1,405,332,945.60x = 1,939,380,674.32 × 770,248,356.18
  4. Step 4: Simplify right side
    1,405,332,945.60x = 1,493,804,776,402,239,744
  5. Step 5: Solve for x
    x = 1,493,804,776,402,239,744/1,405,332,945.60
  6. Step 6: Final answer
    x = 1,062,954,356.18

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Double scale
Find fourth proportional to 1,405,332,946.60, 1,939,380,675.70 and 770,248,357.18
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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.