Finding the Fourth Proportional to 15,927,774.12, 21,979,628.64 and 8,959,033.08
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Solution
The fourth proportional to 15,927,774.12, 21,979,628.64 and 8,959,033.08 is: 12,363,072.11
Step by Step Solution
- Step 1: Write the proportion equation
15,927,774.12 : 21,979,628.64 = 8,959,033.08 : x - Step 2: Convert to fraction form
15,927,774.12/21,979,628.64 = 8,959,033.08/x - Step 3: Cross multiply
15,927,774.12x = 21,979,628.64 × 8,959,033.08 - Step 4: Simplify right side
15,927,774.12x = 196,916,220,071,875.41 - Step 5: Solve for x
x = 196,916,220,071,875.41/15,927,774.12 - Step 6: Final answer
x = 12,363,072.11
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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.