Finding the Fourth Proportional to 472,392,467.70, 708,588,701.55 and 268,319,123.70
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Solution
The fourth proportional to 472,392,467.70, 708,588,701.55 and 268,319,123.70 is: 402,478,685.55
Step by Step Solution
- Step 1: Write the proportion equation
472,392,467.70 : 708,588,701.55 = 268,319,123.70 : x - Step 2: Convert to fraction form
472,392,467.70/708,588,701.55 = 268,319,123.70/x - Step 3: Cross multiply
472,392,467.70x = 708,588,701.55 × 268,319,123.70 - Step 4: Simplify right side
472,392,467.70x = 190,127,899,463,616,800 - Step 5: Solve for x
x = 190,127,899,463,616,800/472,392,467.70 - Step 6: Final answer
x = 402,478,685.55
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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.