Finding the Fourth Proportional to 8,919,370,682.05, 12,309,055,154.74 and 5,109,629,935.95
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Solution
The fourth proportional to 8,919,370,682.05, 12,309,055,154.74 and 5,109,629,935.95 is: 7,051,474,699.72
Step by Step Solution
- Step 1: Write the proportion equation
8,919,370,682.05 : 12,309,055,154.74 = 5,109,629,935.95 : x - Step 2: Convert to fraction form
8,919,370,682.05/12,309,055,154.74 = 5,109,629,935.95/x - Step 3: Cross multiply
8,919,370,682.05x = 12,309,055,154.74 × 5,109,629,935.95 - Step 4: Simplify right side
8,919,370,682.05x = 62,894,716,701,877,805,056 - Step 5: Solve for x
x = 62,894,716,701,877,805,056/8,919,370,682.05 - Step 6: Final answer
x = 7,051,474,699.72
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1.5x scale
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.