Finding the Fourth Proportional to 393,312,209.20, 589,968,313.80 and 270,868,202.80
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Solution
The fourth proportional to 393,312,209.20, 589,968,313.80 and 270,868,202.80 is: 406,302,304.20
Step by Step Solution
- Step 1: Write the proportion equation
393,312,209.20 : 589,968,313.80 = 270,868,202.80 : x - Step 2: Convert to fraction form
393,312,209.20/589,968,313.80 = 270,868,202.80/x - Step 3: Cross multiply
393,312,209.20x = 589,968,313.80 × 270,868,202.80 - Step 4: Simplify right side
393,312,209.20x = 159,803,656,867,952,448 - Step 5: Solve for x
x = 159,803,656,867,952,448/393,312,209.20 - Step 6: Final answer
x = 406,302,304.20
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1.5x scale
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.