Finding the Fourth Proportional to 197,278,378.74, 272,237,459.29 and 109,176,089.76
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Solution
The fourth proportional to 197,278,378.74, 272,237,459.29 and 109,176,089.76 is: 150,659,294.15
Step by Step Solution
- Step 1: Write the proportion equation
197,278,378.74 : 272,237,459.29 = 109,176,089.76 : x - Step 2: Convert to fraction form
197,278,378.74/272,237,459.29 = 109,176,089.76/x - Step 3: Cross multiply
197,278,378.74x = 272,237,459.29 × 109,176,089.76 - Step 4: Simplify right side
197,278,378.74x = 29,721,821,291,205,356 - Step 5: Solve for x
x = 29,721,821,291,205,356/197,278,378.74 - Step 6: Final answer
x = 150,659,294.15
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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.