Finding the Fourth Proportional to 1,302,908,395.08, 1,798,025,621.92 and 708,194,278.82
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Solution
The fourth proportional to 1,302,908,395.08, 1,798,025,621.92 and 708,194,278.82 is: 977,314,647.31
Step by Step Solution
- Step 1: Write the proportion equation
1,302,908,395.08 : 1,798,025,621.92 = 708,194,278.82 : x - Step 2: Convert to fraction form
1,302,908,395.08/1,798,025,621.92 = 708,194,278.82/x - Step 3: Cross multiply
1,302,908,395.08x = 1,798,025,621.92 × 708,194,278.82 - Step 4: Simplify right side
1,302,908,395.08x = 1,273,351,458,615,516,416 - Step 5: Solve for x
x = 1,273,351,458,615,516,416/1,302,908,395.08 - Step 6: Final answer
x = 977,314,647.31
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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.