Finding the Fourth Proportional to 641,072,430.75, 884,671,273.13 and 358,814,787.69
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Solution
The fourth proportional to 641,072,430.75, 884,671,273.13 and 358,814,787.69 is: 495,159,547.99
Step by Step Solution
- Step 1: Write the proportion equation
641,072,430.75 : 884,671,273.13 = 358,814,787.69 : x - Step 2: Convert to fraction form
641,072,430.75/884,671,273.13 = 358,814,787.69/x - Step 3: Cross multiply
641,072,430.75x = 884,671,273.13 × 358,814,787.69 - Step 4: Simplify right side
641,072,430.75x = 317,433,135,041,788,864 - Step 5: Solve for x
x = 317,433,135,041,788,864/641,072,430.75 - Step 6: Final answer
x = 495,159,547.99
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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.