Finding the Fourth Proportional to 5,135,913,701.44, 7,701,442,031.40 and 1,989,601,959.76
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Solution
The fourth proportional to 5,135,913,701.44, 7,701,442,031.40 and 1,989,601,959.76 is: 2,983,462,154.82
Step by Step Solution
- Step 1: Write the proportion equation
5,135,913,701.44 : 7,701,442,031.40 = 1,989,601,959.76 : x - Step 2: Convert to fraction form
5,135,913,701.44/7,701,442,031.40 = 1,989,601,959.76/x - Step 3: Cross multiply
5,135,913,701.44x = 7,701,442,031.40 × 1,989,601,959.76 - Step 4: Simplify right side
5,135,913,701.44x = 15,322,804,158,651,473,920 - Step 5: Solve for x
x = 15,322,804,158,651,473,920/5,135,913,701.44 - Step 6: Final answer
x = 2,983,462,154.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.