Finding the Fourth Proportional to 157,176,873.70, 235,765,310.55 and 70,956,585.70
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Solution
The fourth proportional to 157,176,873.70, 235,765,310.55 and 70,956,585.70 is: 106,434,878.55
Step by Step Solution
- Step 1: Write the proportion equation
157,176,873.70 : 235,765,310.55 = 70,956,585.70 : x - Step 2: Convert to fraction form
157,176,873.70/235,765,310.55 = 70,956,585.70/x - Step 3: Cross multiply
157,176,873.70x = 235,765,310.55 × 70,956,585.70 - Step 4: Simplify right side
157,176,873.70x = 16,729,101,463,128,190 - Step 5: Solve for x
x = 16,729,101,463,128,190/157,176,873.70 - Step 6: Final answer
x = 106,434,878.55
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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.