Finding the Fourth Proportional to 157,465,129.10, 236,197,693.65 and 42,461,296.70
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Solution
The fourth proportional to 157,465,129.10, 236,197,693.65 and 42,461,296.70 is: 63,691,945.05
Step by Step Solution
- Step 1: Write the proportion equation
157,465,129.10 : 236,197,693.65 = 42,461,296.70 : x - Step 2: Convert to fraction form
157,465,129.10/236,197,693.65 = 42,461,296.70/x - Step 3: Cross multiply
157,465,129.10x = 236,197,693.65 × 42,461,296.70 - Step 4: Simplify right side
157,465,129.10x = 10,029,260,349,928,356 - Step 5: Solve for x
x = 10,029,260,349,928,356/157,465,129.10 - Step 6: Final answer
x = 63,691,945.05
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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.