Finding the Fourth Proportional to 7,161,977,794.80, 10,742,966,692.20 and 4,252,434,985.20
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Solution
The fourth proportional to 7,161,977,794.80, 10,742,966,692.20 and 4,252,434,985.20 is: 6,378,652,477.80
Step by Step Solution
- Step 1: Write the proportion equation
7,161,977,794.80 : 10,742,966,692.20 = 4,252,434,985.20 : x - Step 2: Convert to fraction form
7,161,977,794.80/10,742,966,692.20 = 4,252,434,985.20/x - Step 3: Cross multiply
7,161,977,794.80x = 10,742,966,692.20 × 4,252,434,985.20 - Step 4: Simplify right side
7,161,977,794.80x = 45,683,767,406,749,597,696 - Step 5: Solve for x
x = 45,683,767,406,749,597,696/7,161,977,794.80 - Step 6: Final answer
x = 6,378,652,477.80
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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.