Finding the Fourth Proportional to 320,455,489.20, 480,677,980.95 and 102,102,865.08
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Solution
The fourth proportional to 320,455,489.20, 480,677,980.95 and 102,102,865.08 is: 153,152,623.97
Step by Step Solution
- Step 1: Write the proportion equation
320,455,489.20 : 480,677,980.95 = 102,102,865.08 : x - Step 2: Convert to fraction form
320,455,489.20/480,677,980.95 = 102,102,865.08/x - Step 3: Cross multiply
320,455,489.20x = 480,677,980.95 × 102,102,865.08 - Step 4: Simplify right side
320,455,489.20x = 49,078,599,035,864,656 - Step 5: Solve for x
x = 49,078,599,035,864,656/320,455,489.20 - Step 6: Final answer
x = 153,152,623.97
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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.