Finding the Fourth Proportional to 79,418,413.47, 118,761,916.17 and 75,544,208.58
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Solution
The fourth proportional to 79,418,413.47, 118,761,916.17 and 75,544,208.58 is: 112,968,448.68
Step by Step Solution
- Step 1: Write the proportion equation
79,418,413.47 : 118,761,916.17 = 75,544,208.58 : x - Step 2: Convert to fraction form
79,418,413.47/118,761,916.17 = 75,544,208.58/x - Step 3: Cross multiply
79,418,413.47x = 118,761,916.17 × 75,544,208.58 - Step 4: Simplify right side
79,418,413.47x = 8,971,774,966,506,955 - Step 5: Solve for x
x = 8,971,774,966,506,955/79,418,413.47 - Step 6: Final answer
x = 112,968,448.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.