Finding the Fourth Proportional to 19,122,505.65, 28,689,343.22 and 6,168,370.05
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Solution
The fourth proportional to 19,122,505.65, 28,689,343.22 and 6,168,370.05 is: 9,254,356.55
Step by Step Solution
- Step 1: Write the proportion equation
19,122,505.65 : 28,689,343.22 = 6,168,370.05 : x - Step 2: Convert to fraction form
19,122,505.65/28,689,343.22 = 6,168,370.05/x - Step 3: Cross multiply
19,122,505.65x = 28,689,343.22 × 6,168,370.05 - Step 4: Simplify right side
19,122,505.65x = 176,966,485,487,839.47 - Step 5: Solve for x
x = 176,966,485,487,839.47/19,122,505.65 - Step 6: Final answer
x = 9,254,356.55
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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.