Finding the Fourth Proportional to 268,272,021.90, 402,370,708.05 and 86,537,570.70
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Solution
The fourth proportional to 268,272,021.90, 402,370,708.05 and 86,537,570.70 is: 129,794,316.04
Step by Step Solution
- Step 1: Write the proportion equation
268,272,021.90 : 402,370,708.05 = 86,537,570.70 : x - Step 2: Convert to fraction form
268,272,021.90/402,370,708.05 = 86,537,570.70/x - Step 3: Cross multiply
268,272,021.90x = 402,370,708.05 × 86,537,570.70 - Step 4: Simplify right side
268,272,021.90x = 34,820,183,595,485,936 - Step 5: Solve for x
x = 34,820,183,595,485,936/268,272,021.90 - Step 6: Final answer
x = 129,794,316.04
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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.