Finding the Fourth Proportional to 221,281,151.20, 331,921,726.80 and 167,533,439.20
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Solution
The fourth proportional to 221,281,151.20, 331,921,726.80 and 167,533,439.20 is: 251,300,158.80
Step by Step Solution
- Step 1: Write the proportion equation
221,281,151.20 : 331,921,726.80 = 167,533,439.20 : x - Step 2: Convert to fraction form
221,281,151.20/331,921,726.80 = 167,533,439.20/x - Step 3: Cross multiply
221,281,151.20x = 331,921,726.80 × 167,533,439.20 - Step 4: Simplify right side
221,281,151.20x = 55,607,988,436,006,808 - Step 5: Solve for x
x = 55,607,988,436,006,808/221,281,151.20 - Step 6: Final answer
x = 251,300,158.80
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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.