Finding the Fourth Proportional to 420,696,764.83, 633,916,707.41 and 345,699,810.91
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Solution
The fourth proportional to 420,696,764.83, 633,916,707.41 and 345,699,810.91 is: 520,909,367.99
Step by Step Solution
- Step 1: Write the proportion equation
420,696,764.83 : 633,916,707.41 = 345,699,810.91 : x - Step 2: Convert to fraction form
420,696,764.83/633,916,707.41 = 345,699,810.91/x - Step 3: Cross multiply
420,696,764.83x = 633,916,707.41 × 345,699,810.91 - Step 4: Simplify right side
420,696,764.83x = 219,144,885,881,157,184 - Step 5: Solve for x
x = 219,144,885,881,157,184/420,696,764.83 - Step 6: Final answer
x = 520,909,367.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.