Finding the Fourth Proportional to 79,172,763.45, 118,778,926.08 and 55,874,995.97
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Solution
The fourth proportional to 79,172,763.45, 118,778,926.08 and 55,874,995.97 is: 83,826,454.04
Step by Step Solution
- Step 1: Write the proportion equation
79,172,763.45 : 118,778,926.08 = 55,874,995.97 : x - Step 2: Convert to fraction form
79,172,763.45/118,778,926.08 = 55,874,995.97/x - Step 3: Cross multiply
79,172,763.45x = 118,778,926.08 × 55,874,995.97 - Step 4: Simplify right side
79,172,763.45x = 6,636,772,016,486,349 - Step 5: Solve for x
x = 6,636,772,016,486,349/79,172,763.45 - Step 6: Final answer
x = 83,826,454.04
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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.