Finding the Fourth Proportional to 315,437,973.17, 435,302,348.06 and 176,207,517.05
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Solution
The fourth proportional to 315,437,973.17, 435,302,348.06 and 176,207,517.05 is: 243,165,225.63
Step by Step Solution
- Step 1: Write the proportion equation
315,437,973.17 : 435,302,348.06 = 176,207,517.05 : x - Step 2: Convert to fraction form
315,437,973.17/435,302,348.06 = 176,207,517.05/x - Step 3: Cross multiply
315,437,973.17x = 435,302,348.06 × 176,207,517.05 - Step 4: Simplify right side
315,437,973.17x = 76,703,545,915,951,488 - Step 5: Solve for x
x = 76,703,545,915,951,488/315,437,973.17 - Step 6: Final answer
x = 243,165,225.63
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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.