Finding the Fourth Proportional to 7,926,017,415.80, 11,889,026,123.70 and 2,405,266,590.20
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Solution
The fourth proportional to 7,926,017,415.80, 11,889,026,123.70 and 2,405,266,590.20 is: 3,607,899,885.30
Step by Step Solution
- Step 1: Write the proportion equation
7,926,017,415.80 : 11,889,026,123.70 = 2,405,266,590.20 : x - Step 2: Convert to fraction form
7,926,017,415.80/11,889,026,123.70 = 2,405,266,590.20/x - Step 3: Cross multiply
7,926,017,415.80x = 11,889,026,123.70 × 2,405,266,590.20 - Step 4: Simplify right side
7,926,017,415.80x = 28,596,277,325,350,621,184 - Step 5: Solve for x
x = 28,596,277,325,350,621,184/7,926,017,415.80 - Step 6: Final answer
x = 3,607,899,885.30
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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.