Finding the Fourth Proportional to 399,177,086.40, 598,765,629.60 and 369,317,246.40
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Solution
The fourth proportional to 399,177,086.40, 598,765,629.60 and 369,317,246.40 is: 553,975,869.60
Step by Step Solution
- Step 1: Write the proportion equation
399,177,086.40 : 598,765,629.60 = 369,317,246.40 : x - Step 2: Convert to fraction form
399,177,086.40/598,765,629.60 = 369,317,246.40/x - Step 3: Cross multiply
399,177,086.40x = 598,765,629.60 × 369,317,246.40 - Step 4: Simplify right side
399,177,086.40x = 221,134,473,562,834,336 - Step 5: Solve for x
x = 221,134,473,562,834,336/399,177,086.40 - Step 6: Final answer
x = 553,975,869.60
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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.