Finding the Fourth Proportional to 28,805,318.40, 39,750,552.96 and 15,927,822.08
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Solution
The fourth proportional to 28,805,318.40, 39,750,552.96 and 15,927,822.08 is: 21,979,959.61
Step by Step Solution
- Step 1: Write the proportion equation
28,805,318.40 : 39,750,552.96 = 15,927,822.08 : x - Step 2: Convert to fraction form
28,805,318.40/39,750,552.96 = 15,927,822.08/x - Step 3: Cross multiply
28,805,318.40x = 39,750,552.96 × 15,927,822.08 - Step 4: Simplify right side
28,805,318.40x = 633,139,735,128,497.38 - Step 5: Solve for x
x = 633,139,735,128,497.38/28,805,318.40 - Step 6: Final answer
x = 21,979,959.61
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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.