Finding the Fourth Proportional to 156,046,999.70, 215,344,855.67 and 86,436,864.63
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Solution
The fourth proportional to 156,046,999.70, 215,344,855.67 and 86,436,864.63 is: 119,282,871.02
Step by Step Solution
- Step 1: Write the proportion equation
156,046,999.70 : 215,344,855.67 = 86,436,864.63 : x - Step 2: Convert to fraction form
156,046,999.70/215,344,855.67 = 86,436,864.63/x - Step 3: Cross multiply
156,046,999.70x = 215,344,855.67 × 86,436,864.63 - Step 4: Simplify right side
156,046,999.70x = 18,613,734,137,882,492 - Step 5: Solve for x
x = 18,613,734,137,882,492/156,046,999.70 - Step 6: Final answer
x = 119,282,871.02
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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.