Finding the Fourth Proportional to 515,466,880.54, 711,367,719.16 and 303,782,645.09
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Solution
The fourth proportional to 515,466,880.54, 711,367,719.16 and 303,782,645.09 is: 419,233,854.81
Step by Step Solution
- Step 1: Write the proportion equation
515,466,880.54 : 711,367,719.16 = 303,782,645.09 : x - Step 2: Convert to fraction form
515,466,880.54/711,367,719.16 = 303,782,645.09/x - Step 3: Cross multiply
515,466,880.54x = 711,367,719.16 × 303,782,645.09 - Step 4: Simplify right side
515,466,880.54x = 216,101,167,358,065,056 - Step 5: Solve for x
x = 216,101,167,358,065,056/515,466,880.54 - Step 6: Final answer
x = 419,233,854.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.