Finding the Fourth Proportional to 1,328,664,374.80, 1,992,996,562.20 and 346,089,014.80
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Solution
The fourth proportional to 1,328,664,374.80, 1,992,996,562.20 and 346,089,014.80 is: 519,133,522.20
Step by Step Solution
- Step 1: Write the proportion equation
1,328,664,374.80 : 1,992,996,562.20 = 346,089,014.80 : x - Step 2: Convert to fraction form
1,328,664,374.80/1,992,996,562.20 = 346,089,014.80/x - Step 3: Cross multiply
1,328,664,374.80x = 1,992,996,562.20 × 346,089,014.80 - Step 4: Simplify right side
1,328,664,374.80x = 689,754,216,711,585,024 - Step 5: Solve for x
x = 689,754,216,711,585,024/1,328,664,374.80 - Step 6: Final answer
x = 519,133,522.20
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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.