Finding the Fourth Proportional to 20,468,417,525.21, 28,247,877,847.79 and 11,312,749,403.04
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Solution
The fourth proportional to 20,468,417,525.21, 28,247,877,847.79 and 11,312,749,403.04 is: 15,612,402,026.99
Step by Step Solution
- Step 1: Write the proportion equation
20,468,417,525.21 : 28,247,877,847.79 = 11,312,749,403.04 : x - Step 2: Convert to fraction form
20,468,417,525.21/28,247,877,847.79 = 11,312,749,403.04/x - Step 3: Cross multiply
20,468,417,525.21x = 28,247,877,847.79 × 11,312,749,403.04 - Step 4: Simplify right side
20,468,417,525.21x = 319,561,163,259,755,692,032 - Step 5: Solve for x
x = 319,561,163,259,755,692,032/20,468,417,525.21 - Step 6: Final answer
x = 15,612,402,026.99
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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.