Finding the Fourth Proportional to 162,297,981.99, 223,970,641.75 and 87,960,346.61
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Solution
The fourth proportional to 162,297,981.99, 223,970,641.75 and 87,960,346.61 is: 121,384,967.55
Step by Step Solution
- Step 1: Write the proportion equation
162,297,981.99 : 223,970,641.75 = 87,960,346.61 : x - Step 2: Convert to fraction form
162,297,981.99/223,970,641.75 = 87,960,346.61/x - Step 3: Cross multiply
162,297,981.99x = 223,970,641.75 × 87,960,346.61 - Step 4: Simplify right side
162,297,981.99x = 19,700,535,277,784,236 - Step 5: Solve for x
x = 19,700,535,277,784,236/162,297,981.99 - Step 6: Final answer
x = 121,384,967.55
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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.