Finding the Fourth Proportional to 64,164,325.20, 96,246,487.80 and 21,023,125.80
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Solution
The fourth proportional to 64,164,325.20, 96,246,487.80 and 21,023,125.80 is: 31,534,688.70
Step by Step Solution
- Step 1: Write the proportion equation
64,164,325.20 : 96,246,487.80 = 21,023,125.80 : x - Step 2: Convert to fraction form
64,164,325.20/96,246,487.80 = 21,023,125.80/x - Step 3: Cross multiply
64,164,325.20x = 96,246,487.80 × 21,023,125.80 - Step 4: Simplify right side
64,164,325.20x = 2,023,402,020,827,565.25 - Step 5: Solve for x
x = 2,023,402,020,827,565.25/64,164,325.20 - Step 6: Final answer
x = 31,534,688.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.