Finding the Fourth Proportional to 86,920,128,045.10, 130,380,192,067.65 and 84,471,247,917.10
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Solution
The fourth proportional to 86,920,128,045.10, 130,380,192,067.65 and 84,471,247,917.10 is: 126,706,871,875.65
Step by Step Solution
- Step 1: Write the proportion equation
86,920,128,045.10 : 130,380,192,067.65 = 84,471,247,917.10 : x - Step 2: Convert to fraction form
86,920,128,045.10/130,380,192,067.65 = 84,471,247,917.10/x - Step 3: Cross multiply
86,920,128,045.10x = 130,380,192,067.65 × 84,471,247,917.10 - Step 4: Simplify right side
86,920,128,045.10x = 11,013,377,527,625,579,233,280 - Step 5: Solve for x
x = 11,013,377,527,625,579,233,280/86,920,128,045.10 - Step 6: Final answer
x = 126,706,871,875.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.