Finding the Fourth Proportional to 308,340,900.18, 425,471,215.05 and 176,190,462.90
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Solution
The fourth proportional to 308,340,900.18, 425,471,215.05 and 176,190,462.90 is: 243,120,423.81
Step by Step Solution
- Step 1: Write the proportion equation
308,340,900.18 : 425,471,215.05 = 176,190,462.90 : x - Step 2: Convert to fraction form
308,340,900.18/425,471,215.05 = 176,190,462.90/x - Step 3: Cross multiply
308,340,900.18x = 425,471,215.05 × 176,190,462.90 - Step 4: Simplify right side
308,340,900.18x = 74,963,970,330,284,944 - Step 5: Solve for x
x = 74,963,970,330,284,944/308,340,900.18 - Step 6: Final answer
x = 243,120,423.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.