Finding the Fourth Proportional to 90,916,349.04, 125,462,499.48 and 49,663,424.88
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Solution
The fourth proportional to 90,916,349.04, 125,462,499.48 and 49,663,424.88 is: 68,534,399.85
Step by Step Solution
- Step 1: Write the proportion equation
90,916,349.04 : 125,462,499.48 = 49,663,424.88 : x - Step 2: Convert to fraction form
90,916,349.04/125,462,499.48 = 49,663,424.88/x - Step 3: Cross multiply
90,916,349.04x = 125,462,499.48 × 49,663,424.88 - Step 4: Simplify right side
90,916,349.04x = 6,230,897,418,182,020 - Step 5: Solve for x
x = 6,230,897,418,182,020/90,916,349.04 - Step 6: Final answer
x = 68,534,399.85
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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.