Finding the Fourth Proportional to 347,951,330.76, 522,130,518.36 and 129,752,416.20
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Solution
The fourth proportional to 347,951,330.76, 522,130,518.36 and 129,752,416.20 is: 194,704,518.53
Step by Step Solution
- Step 1: Write the proportion equation
347,951,330.76 : 522,130,518.36 = 129,752,416.20 : x - Step 2: Convert to fraction form
347,951,330.76/522,130,518.36 = 129,752,416.20/x - Step 3: Cross multiply
347,951,330.76x = 522,130,518.36 × 129,752,416.20 - Step 4: Simplify right side
347,951,330.76x = 67,747,696,328,968,464 - Step 5: Solve for x
x = 67,747,696,328,968,464/347,951,330.76 - Step 6: Final answer
x = 194,704,518.53
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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.