Finding the Fourth Proportional to 1,620,307,793.60, 2,430,528,045.60 and 471,450,449.60
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Solution
The fourth proportional to 1,620,307,793.60, 2,430,528,045.60 and 471,450,449.60 is: 707,194,981.34
Step by Step Solution
- Step 1: Write the proportion equation
1,620,307,793.60 : 2,430,528,045.60 = 471,450,449.60 : x - Step 2: Convert to fraction form
1,620,307,793.60/2,430,528,045.60 = 471,450,449.60/x - Step 3: Cross multiply
1,620,307,793.60x = 2,430,528,045.60 × 471,450,449.60 - Step 4: Simplify right side
1,620,307,793.60x = 1,145,873,539,863,529,344 - Step 5: Solve for x
x = 1,145,873,539,863,529,344/1,620,307,793.60 - Step 6: Final answer
x = 707,194,981.34
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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.