Finding the Fourth Proportional to 1,677,519,656.18, 2,516,642,709.44 and 642,380,574.04
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Solution
The fourth proportional to 1,677,519,656.18, 2,516,642,709.44 and 642,380,574.04 is: 963,709,952.60
Step by Step Solution
- Step 1: Write the proportion equation
1,677,519,656.18 : 2,516,642,709.44 = 642,380,574.04 : x - Step 2: Convert to fraction form
1,677,519,656.18/2,516,642,709.44 = 642,380,574.04/x - Step 3: Cross multiply
1,677,519,656.18x = 2,516,642,709.44 × 642,380,574.04 - Step 4: Simplify right side
1,677,519,656.18x = 1,616,642,388,343,648,000 - Step 5: Solve for x
x = 1,616,642,388,343,648,000/1,677,519,656.18 - Step 6: Final answer
x = 963,709,952.60
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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.