Finding the Fourth Proportional to 28,014,666.12, 38,660,830.80 and 15,791,519.88
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Solution
The fourth proportional to 28,014,666.12, 38,660,830.80 and 15,791,519.88 is: 21,792,630.89
Step by Step Solution
- Step 1: Write the proportion equation
28,014,666.12 : 38,660,830.80 = 15,791,519.88 : x - Step 2: Convert to fraction form
28,014,666.12/38,660,830.80 = 15,791,519.88/x - Step 3: Cross multiply
28,014,666.12x = 38,660,830.80 × 15,791,519.88 - Step 4: Simplify right side
28,014,666.12x = 610,513,278,155,516.25 - Step 5: Solve for x
x = 610,513,278,155,516.25/28,014,666.12 - Step 6: Final answer
x = 21,792,630.89
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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.