Finding the Fourth Proportional to 107,839,397.20, 161,759,095.80 and 47,373,221.20
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Solution
The fourth proportional to 107,839,397.20, 161,759,095.80 and 47,373,221.20 is: 71,059,831.80
Step by Step Solution
- Step 1: Write the proportion equation
107,839,397.20 : 161,759,095.80 = 47,373,221.20 : x - Step 2: Convert to fraction form
107,839,397.20/161,759,095.80 = 47,373,221.20/x - Step 3: Cross multiply
107,839,397.20x = 161,759,095.80 × 47,373,221.20 - Step 4: Simplify right side
107,839,397.20x = 7,663,049,426,445,392 - Step 5: Solve for x
x = 7,663,049,426,445,392/107,839,397.20 - Step 6: Final answer
x = 71,059,831.80
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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.