Finding the Fourth Proportional to 197,605,612.81, 272,819,697.50 and 127,163,610.76
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Solution
The fourth proportional to 197,605,612.81, 272,819,697.50 and 127,163,610.76 is: 175,565,548.61
Step by Step Solution
- Step 1: Write the proportion equation
197,605,612.81 : 272,819,697.50 = 127,163,610.76 : x - Step 2: Convert to fraction form
197,605,612.81/272,819,697.50 = 127,163,610.76/x - Step 3: Cross multiply
197,605,612.81x = 272,819,697.50 × 127,163,610.76 - Step 4: Simplify right side
197,605,612.81x = 34,692,737,820,550,948 - Step 5: Solve for x
x = 34,692,737,820,550,948/197,605,612.81 - Step 6: Final answer
x = 175,565,548.61
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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.