Finding the Fourth Proportional to 1,165,119,193.47, 1,747,693,935.36 and 388,764,854.22
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Solution
The fourth proportional to 1,165,119,193.47, 1,747,693,935.36 and 388,764,854.22 is: 583,152,334.81
Step by Step Solution
- Step 1: Write the proportion equation
1,165,119,193.47 : 1,747,693,935.36 = 388,764,854.22 : x - Step 2: Convert to fraction form
1,165,119,193.47/1,747,693,935.36 = 388,764,854.22/x - Step 3: Cross multiply
1,165,119,193.47x = 1,747,693,935.36 × 388,764,854.22 - Step 4: Simplify right side
1,165,119,193.47x = 679,441,978,001,408,512 - Step 5: Solve for x
x = 679,441,978,001,408,512/1,165,119,193.47 - Step 6: Final answer
x = 583,152,334.81
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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.