Finding the Fourth Proportional to 283,124,963.16, 390,724,571.10 and 157,677,158.28
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Solution
The fourth proportional to 283,124,963.16, 390,724,571.10 and 157,677,158.28 is: 217,601,229.34
Step by Step Solution
- Step 1: Write the proportion equation
283,124,963.16 : 390,724,571.10 = 157,677,158.28 : x - Step 2: Convert to fraction form
283,124,963.16/390,724,571.10 = 157,677,158.28/x - Step 3: Cross multiply
283,124,963.16x = 390,724,571.10 × 157,677,158.28 - Step 4: Simplify right side
283,124,963.16x = 61,608,340,041,219,816 - Step 5: Solve for x
x = 61,608,340,041,219,816/283,124,963.16 - Step 6: Final answer
x = 217,601,229.34
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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.