Finding the Fourth Proportional to 78,917,368.80, 118,376,053.20 and 44,943,506.40
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Solution
The fourth proportional to 78,917,368.80, 118,376,053.20 and 44,943,506.40 is: 67,415,259.60
Step by Step Solution
- Step 1: Write the proportion equation
78,917,368.80 : 118,376,053.20 = 44,943,506.40 : x - Step 2: Convert to fraction form
78,917,368.80/118,376,053.20 = 44,943,506.40/x - Step 3: Cross multiply
78,917,368.80x = 118,376,053.20 × 44,943,506.40 - Step 4: Simplify right side
78,917,368.80x = 5,320,234,904,600,940 - Step 5: Solve for x
x = 5,320,234,904,600,940/78,917,368.80 - Step 6: Final answer
x = 67,415,259.60
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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.