Finding the Fourth Proportional to 28,014,677.12, 38,660,845.98 and 15,791,530.88
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Solution
The fourth proportional to 28,014,677.12, 38,660,845.98 and 15,791,530.88 is: 21,792,646.07
Step by Step Solution
- Step 1: Write the proportion equation
28,014,677.12 : 38,660,845.98 = 15,791,530.88 : x - Step 2: Convert to fraction form
28,014,677.12/38,660,845.98 = 15,791,530.88/x - Step 3: Cross multiply
28,014,677.12x = 38,660,845.98 × 15,791,530.88 - Step 4: Simplify right side
28,014,677.12x = 610,513,943,140,093.88 - Step 5: Solve for x
x = 610,513,943,140,093.88/28,014,677.12 - Step 6: Final answer
x = 21,792,646.07
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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.