Finding the Fourth Proportional to 77,703,403.88, 107,227,881.47 and 42,895,346.99
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Solution
The fourth proportional to 77,703,403.88, 107,227,881.47 and 42,895,346.99 is: 59,194,024.36
Step by Step Solution
- Step 1: Write the proportion equation
77,703,403.88 : 107,227,881.47 = 42,895,346.99 : x - Step 2: Convert to fraction form
77,703,403.88/107,227,881.47 = 42,895,346.99/x - Step 3: Cross multiply
77,703,403.88x = 107,227,881.47 × 42,895,346.99 - Step 4: Simplify right side
77,703,403.88x = 4,599,577,182,229,340 - Step 5: Solve for x
x = 4,599,577,182,229,340/77,703,403.88 - Step 6: Final answer
x = 59,194,024.36
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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.