Finding the Fourth Proportional to 28,774,449.68, 39,726,337.48 and 18,725,524.07
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Solution
The fourth proportional to 28,774,449.68, 39,726,337.48 and 18,725,524.07 is: 25,852,674.75
Step by Step Solution
- Step 1: Write the proportion equation
28,774,449.68 : 39,726,337.48 = 18,725,524.07 : x - Step 2: Convert to fraction form
28,774,449.68/39,726,337.48 = 18,725,524.07/x - Step 3: Cross multiply
28,774,449.68x = 39,726,337.48 × 18,725,524.07 - Step 4: Simplify right side
28,774,449.68x = 743,896,488,449,237.62 - Step 5: Solve for x
x = 743,896,488,449,237.62/28,774,449.68 - Step 6: Final answer
x = 25,852,674.75
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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.