Finding the Fourth Proportional to 319,396,515.87, 479,133,020.79 and 98,038,861.02
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Solution
The fourth proportional to 319,396,515.87, 479,133,020.79 and 98,038,861.02 is: 147,070,031.45
Step by Step Solution
- Step 1: Write the proportion equation
319,396,515.87 : 479,133,020.79 = 98,038,861.02 : x - Step 2: Convert to fraction form
319,396,515.87/479,133,020.79 = 98,038,861.02/x - Step 3: Cross multiply
319,396,515.87x = 479,133,020.79 × 98,038,861.02 - Step 4: Simplify right side
319,396,515.87x = 46,973,655,635,323,584 - Step 5: Solve for x
x = 46,973,655,635,323,584/319,396,515.87 - Step 6: Final answer
x = 147,070,031.45
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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.