Finding the Fourth Proportional to 128,465,746.68, 192,667,765.78 and 59,312,107.30
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Solution
The fourth proportional to 128,465,746.68, 192,667,765.78 and 59,312,107.30 is: 88,953,915.67
Step by Step Solution
- Step 1: Write the proportion equation
128,465,746.68 : 192,667,765.78 = 59,312,107.30 : x - Step 2: Convert to fraction form
128,465,746.68/192,667,765.78 = 59,312,107.30/x - Step 3: Cross multiply
128,465,746.68x = 192,667,765.78 × 59,312,107.30 - Step 4: Simplify right side
128,465,746.68x = 11,427,531,197,194,628 - Step 5: Solve for x
x = 11,427,531,197,194,628/128,465,746.68 - Step 6: Final answer
x = 88,953,915.67
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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.