Finding the Fourth Proportional to 455,867,642.58, 683,633,957.76 and 156,651,713.88
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Solution
The fourth proportional to 455,867,642.58, 683,633,957.76 and 156,651,713.88 is: 234,920,009.99
Step by Step Solution
- Step 1: Write the proportion equation
455,867,642.58 : 683,633,957.76 = 156,651,713.88 : x - Step 2: Convert to fraction form
455,867,642.58/683,633,957.76 = 156,651,713.88/x - Step 3: Cross multiply
455,867,642.58x = 683,633,957.76 × 156,651,713.88 - Step 4: Simplify right side
455,867,642.58x = 107,092,431,149,671,520 - Step 5: Solve for x
x = 107,092,431,149,671,520/455,867,642.58 - Step 6: Final answer
x = 234,920,009.99
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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.