Finding the Fourth Proportional to 474,366,904.47, 654,590,586.18 and 288,707,400.63
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Solution
The fourth proportional to 474,366,904.47, 654,590,586.18 and 288,707,400.63 is: 398,394,459.71
Step by Step Solution
- Step 1: Write the proportion equation
474,366,904.47 : 654,590,586.18 = 288,707,400.63 : x - Step 2: Convert to fraction form
474,366,904.47/654,590,586.18 = 288,707,400.63/x - Step 3: Cross multiply
474,366,904.47x = 654,590,586.18 × 288,707,400.63 - Step 4: Simplify right side
474,366,904.47x = 188,985,146,612,895,776 - Step 5: Solve for x
x = 188,985,146,612,895,776/474,366,904.47 - Step 6: Final answer
x = 398,394,459.71
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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.