Finding the Fourth Proportional to 19,315,584,245.80, 28,973,376,368.70 and 18,771,388,661.80
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Solution
The fourth proportional to 19,315,584,245.80, 28,973,376,368.70 and 18,771,388,661.80 is: 28,157,082,992.70
Step by Step Solution
- Step 1: Write the proportion equation
19,315,584,245.80 : 28,973,376,368.70 = 18,771,388,661.80 : x - Step 2: Convert to fraction form
19,315,584,245.80/28,973,376,368.70 = 18,771,388,661.80/x - Step 3: Cross multiply
19,315,584,245.80x = 28,973,376,368.70 × 18,771,388,661.80 - Step 4: Simplify right side
19,315,584,245.80x = 543,870,508,661,479,243,776 - Step 5: Solve for x
x = 543,870,508,661,479,243,776/19,315,584,245.80 - Step 6: Final answer
x = 28,157,082,992.70
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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.