Finding the Fourth Proportional to 19,136,620.80, 28,710,460.80 and 5,673,772.80
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Solution
The fourth proportional to 19,136,620.80, 28,710,460.80 and 5,673,772.80 is: 8,512,298.66
Step by Step Solution
- Step 1: Write the proportion equation
19,136,620.80 : 28,710,460.80 = 5,673,772.80 : x - Step 2: Convert to fraction form
19,136,620.80/28,710,460.80 = 5,673,772.80/x - Step 3: Cross multiply
19,136,620.80x = 28,710,460.80 × 5,673,772.80 - Step 4: Simplify right side
19,136,620.80x = 162,896,631,562,506.25 - Step 5: Solve for x
x = 162,896,631,562,506.25/19,136,620.80 - Step 6: Final answer
x = 8,512,298.66
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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.