Finding the Fourth Proportional to 798,210,005.20, 1,197,315,007.80 and 471,692,654.80
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Solution
The fourth proportional to 798,210,005.20, 1,197,315,007.80 and 471,692,654.80 is: 707,538,982.20
Step by Step Solution
- Step 1: Write the proportion equation
798,210,005.20 : 1,197,315,007.80 = 471,692,654.80 : x - Step 2: Convert to fraction form
798,210,005.20/1,197,315,007.80 = 471,692,654.80/x - Step 3: Cross multiply
798,210,005.20x = 1,197,315,007.80 × 471,692,654.80 - Step 4: Simplify right side
798,210,005.20x = 564,764,694,661,064,704 - Step 5: Solve for x
x = 564,764,694,661,064,704/798,210,005.20 - Step 6: Final answer
x = 707,538,982.20
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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.