Finding the Fourth Proportional to 77,403,510.96, 106,792,797.36 and 43,907,469.54
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Solution
The fourth proportional to 77,403,510.96, 106,792,797.36 and 43,907,469.54 is: 60,578,666.77
Step by Step Solution
- Step 1: Write the proportion equation
77,403,510.96 : 106,792,797.36 = 43,907,469.54 : x - Step 2: Convert to fraction form
77,403,510.96/106,792,797.36 = 43,907,469.54/x - Step 3: Cross multiply
77,403,510.96x = 106,792,797.36 × 43,907,469.54 - Step 4: Simplify right side
77,403,510.96x = 4,689,001,497,175,592 - Step 5: Solve for x
x = 4,689,001,497,175,592/77,403,510.96 - Step 6: Final answer
x = 60,578,666.77
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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.