Finding the Fourth Proportional to 3,432,221,502.84, 5,148,380,085.71 and 978,558,405.84
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Solution
The fourth proportional to 3,432,221,502.84, 5,148,380,085.71 and 978,558,405.84 is: 1,467,851,245.95
Step by Step Solution
- Step 1: Write the proportion equation
3,432,221,502.84 : 5,148,380,085.71 = 978,558,405.84 : x - Step 2: Convert to fraction form
3,432,221,502.84/5,148,380,085.71 = 978,558,405.84/x - Step 3: Cross multiply
3,432,221,502.84x = 5,148,380,085.71 × 978,558,405.84 - Step 4: Simplify right side
3,432,221,502.84x = 5,037,990,609,325,887,488 - Step 5: Solve for x
x = 5,037,990,609,325,887,488/3,432,221,502.84 - Step 6: Final answer
x = 1,467,851,245.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.