Finding the Fourth Proportional to 1,365,355,178.19, 1,884,193,421.16 and 738,830,329.11
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Solution
The fourth proportional to 1,365,355,178.19, 1,884,193,421.16 and 738,830,329.11 is: 1,019,587,626.50
Step by Step Solution
- Step 1: Write the proportion equation
1,365,355,178.19 : 1,884,193,421.16 = 738,830,329.11 : x - Step 2: Convert to fraction form
1,365,355,178.19/1,884,193,421.16 = 738,830,329.11/x - Step 3: Cross multiply
1,365,355,178.19x = 1,884,193,421.16 × 738,830,329.11 - Step 4: Simplify right side
1,365,355,178.19x = 1,392,099,245,462,539,776 - Step 5: Solve for x
x = 1,392,099,245,462,539,776/1,365,355,178.19 - Step 6: Final answer
x = 1,019,587,626.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.