Finding the Fourth Proportional to 139,454,900.70, 209,182,351.05 and 130,951,844.70
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Solution
The fourth proportional to 139,454,900.70, 209,182,351.05 and 130,951,844.70 is: 196,427,767.05
Step by Step Solution
- Step 1: Write the proportion equation
139,454,900.70 : 209,182,351.05 = 130,951,844.70 : x - Step 2: Convert to fraction form
139,454,900.70/209,182,351.05 = 130,951,844.70/x - Step 3: Cross multiply
139,454,900.70x = 209,182,351.05 × 130,951,844.70 - Step 4: Simplify right side
139,454,900.70x = 27,392,814,748,680,484 - Step 5: Solve for x
x = 27,392,814,748,680,484/139,454,900.70 - Step 6: Final answer
x = 196,427,767.05
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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.