Finding the Fourth Proportional to 70,240,464.12, 96,928,785.74 and 38,876,643.14
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Solution
The fourth proportional to 70,240,464.12, 96,928,785.74 and 38,876,643.14 is: 53,648,076.79
Step by Step Solution
- Step 1: Write the proportion equation
70,240,464.12 : 96,928,785.74 = 38,876,643.14 : x - Step 2: Convert to fraction form
70,240,464.12/96,928,785.74 = 38,876,643.14/x - Step 3: Cross multiply
70,240,464.12x = 96,928,785.74 × 38,876,643.14 - Step 4: Simplify right side
70,240,464.12x = 3,768,265,813,365,273 - Step 5: Solve for x
x = 3,768,265,813,365,273/70,240,464.12 - Step 6: Final answer
x = 53,648,076.79
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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.