Finding the Fourth Proportional to 90,348,972,117.13, 124,860,472,286.01 and 74,046,866,346.32
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Solution
The fourth proportional to 90,348,972,117.13, 124,860,472,286.01 and 74,046,866,346.32 is: 102,331,288,189.02
Step by Step Solution
- Step 1: Write the proportion equation
90,348,972,117.13 : 124,860,472,286.01 = 74,046,866,346.32 : x - Step 2: Convert to fraction form
90,348,972,117.13/124,860,472,286.01 = 74,046,866,346.32/x - Step 3: Cross multiply
90,348,972,117.13x = 124,860,472,286.01 × 74,046,866,346.32 - Step 4: Simplify right side
90,348,972,117.13x = 9,245,526,703,299,950,018,560 - Step 5: Solve for x
x = 9,245,526,703,299,950,018,560/90,348,972,117.13 - Step 6: Final answer
x = 102,331,288,189.02
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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.