Finding the Fourth Proportional to 5,387,800,451.49, 7,381,163,316.02 and 5,186,362,390.52
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Solution
The fourth proportional to 5,387,800,451.49, 7,381,163,316.02 and 5,186,362,390.52 is: 7,105,197,782.49
Step by Step Solution
- Step 1: Write the proportion equation
5,387,800,451.49 : 7,381,163,316.02 = 5,186,362,390.52 : x - Step 2: Convert to fraction form
5,387,800,451.49/7,381,163,316.02 = 5,186,362,390.52/x - Step 3: Cross multiply
5,387,800,451.49x = 7,381,163,316.02 × 5,186,362,390.52 - Step 4: Simplify right side
5,387,800,451.49x = 38,281,387,820,429,180,928 - Step 5: Solve for x
x = 38,281,387,820,429,180,928/5,387,800,451.49 - Step 6: Final answer
x = 7,105,197,782.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.