Finding the Fourth Proportional to 289,023,894.90, 398,853,368.73 and 156,864,893.09
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Solution
The fourth proportional to 289,023,894.90, 398,853,368.73 and 156,864,893.09 is: 216,473,766.17
Step by Step Solution
- Step 1: Write the proportion equation
289,023,894.90 : 398,853,368.73 = 156,864,893.09 : x - Step 2: Convert to fraction form
289,023,894.90/398,853,368.73 = 156,864,893.09/x - Step 3: Cross multiply
289,023,894.90x = 398,853,368.73 × 156,864,893.09 - Step 4: Simplify right side
289,023,894.90x = 62,566,091,042,423,536 - Step 5: Solve for x
x = 62,566,091,042,423,536/289,023,894.90 - Step 6: Final answer
x = 216,473,766.17
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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.