Finding the Fourth Proportional to 1,048,984,974.20, 1,574,429,243.70 and 531,775,220.60
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Solution
The fourth proportional to 1,048,984,974.20, 1,574,429,243.70 and 531,775,220.60 is: 798,145,329.99
Step by Step Solution
- Step 1: Write the proportion equation
1,048,984,974.20 : 1,574,429,243.70 = 531,775,220.60 : x - Step 2: Convert to fraction form
1,048,984,974.20/1,574,429,243.70 = 531,775,220.60/x - Step 3: Cross multiply
1,048,984,974.20x = 1,574,429,243.70 × 531,775,220.60 - Step 4: Simplify right side
1,048,984,974.20x = 837,242,458,387,658,752 - Step 5: Solve for x
x = 837,242,458,387,658,752/1,048,984,974.20 - Step 6: Final answer
x = 798,145,329.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.