Finding the Fourth Proportional to 520,430,495.31, 718,187,378.04 and 297,409,619.97
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Solution
The fourth proportional to 520,430,495.31, 718,187,378.04 and 297,409,619.97 is: 410,421,443.58
Step by Step Solution
- Step 1: Write the proportion equation
520,430,495.31 : 718,187,378.04 = 297,409,619.97 : x - Step 2: Convert to fraction form
520,430,495.31/718,187,378.04 = 297,409,619.97/x - Step 3: Cross multiply
520,430,495.31x = 718,187,378.04 × 297,409,619.97 - Step 4: Simplify right side
520,430,495.31x = 213,595,835,170,127,136 - Step 5: Solve for x
x = 213,595,835,170,127,136/520,430,495.31 - Step 6: Final answer
x = 410,421,443.58
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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.