Finding the Fourth Proportional to 304,909,821.06, 420,774,637.05 and 165,681,007.62
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Solution
The fourth proportional to 304,909,821.06, 420,774,637.05 and 165,681,007.62 is: 228,639,292.78
Step by Step Solution
- Step 1: Write the proportion equation
304,909,821.06 : 420,774,637.05 = 165,681,007.62 : x - Step 2: Convert to fraction form
304,909,821.06/420,774,637.05 = 165,681,007.62/x - Step 3: Cross multiply
304,909,821.06x = 420,774,637.05 × 165,681,007.62 - Step 4: Simplify right side
304,909,821.06x = 69,714,365,847,383,792 - Step 5: Solve for x
x = 69,714,365,847,383,792/304,909,821.06 - Step 6: Final answer
x = 228,639,292.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.