Finding the Fourth Proportional to 1,135,193,322.42, 1,566,270,319.95 and 665,041,903.92
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Solution
The fourth proportional to 1,135,193,322.42, 1,566,270,319.95 and 665,041,903.92 is: 917,584,146.30
Step by Step Solution
- Step 1: Write the proportion equation
1,135,193,322.42 : 1,566,270,319.95 = 665,041,903.92 : x - Step 2: Convert to fraction form
1,135,193,322.42/1,566,270,319.95 = 665,041,903.92/x - Step 3: Cross multiply
1,135,193,322.42x = 1,566,270,319.95 × 665,041,903.92 - Step 4: Simplify right side
1,135,193,322.42x = 1,041,635,395,632,935,552 - Step 5: Solve for x
x = 1,041,635,395,632,935,552/1,135,193,322.42 - Step 6: Final answer
x = 917,584,146.30
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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.