Finding the Fourth Proportional to 211,355,901.70, 317,033,852.55 and 134,828,397.70
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Solution
The fourth proportional to 211,355,901.70, 317,033,852.55 and 134,828,397.70 is: 202,242,596.55
Step by Step Solution
- Step 1: Write the proportion equation
211,355,901.70 : 317,033,852.55 = 134,828,397.70 : x - Step 2: Convert to fraction form
211,355,901.70/317,033,852.55 = 134,828,397.70/x - Step 3: Cross multiply
211,355,901.70x = 317,033,852.55 × 134,828,397.70 - Step 4: Simplify right side
211,355,901.70x = 42,745,166,355,974,560 - Step 5: Solve for x
x = 42,745,166,355,974,560/211,355,901.70 - Step 6: Final answer
x = 202,242,596.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.