Finding the Fourth Proportional to 28,091,690.58, 42,137,536.14 and 7,896,932.58
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Solution
The fourth proportional to 28,091,690.58, 42,137,536.14 and 7,896,932.58 is: 11,845,398.95
Step by Step Solution
- Step 1: Write the proportion equation
28,091,690.58 : 42,137,536.14 = 7,896,932.58 : x - Step 2: Convert to fraction form
28,091,690.58/42,137,536.14 = 7,896,932.58/x - Step 3: Cross multiply
28,091,690.58x = 42,137,536.14 × 7,896,932.58 - Step 4: Simplify right side
28,091,690.58x = 332,757,281,984,893.44 - Step 5: Solve for x
x = 332,757,281,984,893.44/28,091,690.58 - Step 6: Final answer
x = 11,845,398.95
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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.