Finding the Fourth Proportional to 219,924,917.76, 303,497,095.68 and 122,139,773.76
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Solution
The fourth proportional to 219,924,917.76, 303,497,095.68 and 122,139,773.76 is: 168,553,281.64
Step by Step Solution
- Step 1: Write the proportion equation
219,924,917.76 : 303,497,095.68 = 122,139,773.76 : x - Step 2: Convert to fraction form
219,924,917.76/303,497,095.68 = 122,139,773.76/x - Step 3: Cross multiply
219,924,917.76x = 303,497,095.68 × 122,139,773.76 - Step 4: Simplify right side
219,924,917.76x = 37,069,066,603,172,272 - Step 5: Solve for x
x = 37,069,066,603,172,272/219,924,917.76 - Step 6: Final answer
x = 168,553,281.64
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1.5x scale
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.