Finding the Fourth Proportional to 81,609,962.80, 122,386,367.40 and 24,087,002.80
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Solution
The fourth proportional to 81,609,962.80, 122,386,367.40 and 24,087,002.80 is: 36,122,069.82
Step by Step Solution
- Step 1: Write the proportion equation
81,609,962.80 : 122,386,367.40 = 24,087,002.80 : x - Step 2: Convert to fraction form
81,609,962.80/122,386,367.40 = 24,087,002.80/x - Step 3: Cross multiply
81,609,962.80x = 122,386,367.40 × 24,087,002.80 - Step 4: Simplify right side
81,609,962.80x = 2,947,920,774,245,629 - Step 5: Solve for x
x = 2,947,920,774,245,629/81,609,962.80 - Step 6: Final answer
x = 36,122,069.82
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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.