Finding the Fourth Proportional to 1,164,921,126.08, 1,747,388,221.97 and 388,564,655.49
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Solution
The fourth proportional to 1,164,921,126.08, 1,747,388,221.97 and 388,564,655.49 is: 582,849,162.30
Step by Step Solution
- Step 1: Write the proportion equation
1,164,921,126.08 : 1,747,388,221.97 = 388,564,655.49 : x - Step 2: Convert to fraction form
1,164,921,126.08/1,747,388,221.97 = 388,564,655.49/x - Step 3: Cross multiply
1,164,921,126.08x = 1,747,388,221.97 × 388,564,655.49 - Step 4: Simplify right side
1,164,921,126.08x = 678,973,302,475,113,856 - Step 5: Solve for x
x = 678,973,302,475,113,856/1,164,921,126.08 - Step 6: Final answer
x = 582,849,162.30
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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.