Finding the Fourth Proportional to 28,276,177.29, 42,413,418.27 and 7,807,147.62
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Solution
The fourth proportional to 28,276,177.29, 42,413,418.27 and 7,807,147.62 is: 11,710,487.39
Step by Step Solution
- Step 1: Write the proportion equation
28,276,177.29 : 42,413,418.27 = 7,807,147.62 : x - Step 2: Convert to fraction form
28,276,177.29/42,413,418.27 = 7,807,147.62/x - Step 3: Cross multiply
28,276,177.29x = 42,413,418.27 × 7,807,147.62 - Step 4: Simplify right side
28,276,177.29x = 331,127,817,502,695.06 - Step 5: Solve for x
x = 331,127,817,502,695.06/28,276,177.29 - Step 6: Final answer
x = 11,710,487.39
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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.