Finding the Fourth Proportional to 5,645,242,178.16, 7,790,440,616.28 and 3,139,062,082.80
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Solution
The fourth proportional to 5,645,242,178.16, 7,790,440,616.28 and 3,139,062,082.80 is: 4,331,909,238.81
Step by Step Solution
- Step 1: Write the proportion equation
5,645,242,178.16 : 7,790,440,616.28 = 3,139,062,082.80 : x - Step 2: Convert to fraction form
5,645,242,178.16/7,790,440,616.28 = 3,139,062,082.80/x - Step 3: Cross multiply
5,645,242,178.16x = 7,790,440,616.28 × 3,139,062,082.80 - Step 4: Simplify right side
5,645,242,178.16x = 24,454,676,746,869,612,544 - Step 5: Solve for x
x = 24,454,676,746,869,612,544/5,645,242,178.16 - Step 6: Final answer
x = 4,331,909,238.81
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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.