Finding the Fourth Proportional to 288,129,208.31, 432,192,366.99 and 69,779,544.52
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Solution
The fourth proportional to 288,129,208.31, 432,192,366.99 and 69,779,544.52 is: 104,668,966.71
Step by Step Solution
- Step 1: Write the proportion equation
288,129,208.31 : 432,192,366.99 = 69,779,544.52 : x - Step 2: Convert to fraction form
288,129,208.31/432,192,366.99 = 69,779,544.52/x - Step 3: Cross multiply
288,129,208.31x = 432,192,366.99 × 69,779,544.52 - Step 4: Simplify right side
288,129,208.31x = 30,158,186,513,582,884 - Step 5: Solve for x
x = 30,158,186,513,582,884/288,129,208.31 - Step 6: Final answer
x = 104,668,966.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.