Finding the Fourth Proportional to 28,643,994.14, 42,965,570.48 and 7,078,595.31
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Solution
The fourth proportional to 28,643,994.14, 42,965,570.48 and 7,078,595.31 is: 10,617,788.99
Step by Step Solution
- Step 1: Write the proportion equation
28,643,994.14 : 42,965,570.48 = 7,078,595.31 : x - Step 2: Convert to fraction form
28,643,994.14/42,965,570.48 = 7,078,595.31/x - Step 3: Cross multiply
28,643,994.14x = 42,965,570.48 × 7,078,595.31 - Step 4: Simplify right side
28,643,994.14x = 304,135,885,655,809.44 - Step 5: Solve for x
x = 304,135,885,655,809.44/28,643,994.14 - Step 6: Final answer
x = 10,617,788.99
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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.