Finding the Fourth Proportional to 15,684,298.52, 21,641,983.99 and 8,807,451.98
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Solution
The fourth proportional to 15,684,298.52, 21,641,983.99 and 8,807,451.98 is: 12,152,965.24
Step by Step Solution
- Step 1: Write the proportion equation
15,684,298.52 : 21,641,983.99 = 8,807,451.98 : x - Step 2: Convert to fraction form
15,684,298.52/21,641,983.99 = 8,807,451.98/x - Step 3: Cross multiply
15,684,298.52x = 21,641,983.99 × 8,807,451.98 - Step 4: Simplify right side
15,684,298.52x = 190,610,734,613,625.25 - Step 5: Solve for x
x = 190,610,734,613,625.25/15,684,298.52 - Step 6: Final answer
x = 12,152,965.24
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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.