Finding the Fourth Proportional to 418,863,110.69, 578,071,921.58 and 312,832,444.97
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Solution
The fourth proportional to 418,863,110.69, 578,071,921.58 and 312,832,444.97 is: 431,739,267.50
Step by Step Solution
- Step 1: Write the proportion equation
418,863,110.69 : 578,071,921.58 = 312,832,444.97 : x - Step 2: Convert to fraction form
418,863,110.69/578,071,921.58 = 312,832,444.97/x - Step 3: Cross multiply
418,863,110.69x = 578,071,921.58 × 312,832,444.97 - Step 4: Simplify right side
418,863,110.69x = 180,839,652,591,922,976 - Step 5: Solve for x
x = 180,839,652,591,922,976/418,863,110.69 - Step 6: Final answer
x = 431,739,267.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.