Finding the Fourth Proportional to 128,465,747.68, 192,667,767.28 and 59,312,108.30
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Solution
The fourth proportional to 128,465,747.68, 192,667,767.28 and 59,312,108.30 is: 88,953,917.17
Step by Step Solution
- Step 1: Write the proportion equation
128,465,747.68 : 192,667,767.28 = 59,312,108.30 : x - Step 2: Convert to fraction form
128,465,747.68/192,667,767.28 = 59,312,108.30/x - Step 3: Cross multiply
128,465,747.68x = 192,667,767.28 × 59,312,108.30 - Step 4: Simplify right side
128,465,747.68x = 11,427,531,478,830,556 - Step 5: Solve for x
x = 11,427,531,478,830,556/128,465,747.68 - Step 6: Final answer
x = 88,953,917.17
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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.