Finding the Fourth Proportional to 3,940,742,454.14, 5,438,221,037.39 and 2,224,452,947.81
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Solution
The fourth proportional to 3,940,742,454.14, 5,438,221,037.39 and 2,224,452,947.81 is: 3,069,743,064.46
Step by Step Solution
- Step 1: Write the proportion equation
3,940,742,454.14 : 5,438,221,037.39 = 2,224,452,947.81 : x - Step 2: Convert to fraction form
3,940,742,454.14/5,438,221,037.39 = 2,224,452,947.81/x - Step 3: Cross multiply
3,940,742,454.14x = 5,438,221,037.39 × 2,224,452,947.81 - Step 4: Simplify right side
3,940,742,454.14x = 12,097,066,817,442,686,976 - Step 5: Solve for x
x = 12,097,066,817,442,686,976/3,940,742,454.14 - Step 6: Final answer
x = 3,069,743,064.46
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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.