Finding the Fourth Proportional to 298,604,977.20, 447,840,246.60 and 107,128,753.20
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Solution
The fourth proportional to 298,604,977.20, 447,840,246.60 and 107,128,753.20 is: 160,669,013.96
Step by Step Solution
- Step 1: Write the proportion equation
298,604,977.20 : 447,840,246.60 = 107,128,753.20 : x - Step 2: Convert to fraction form
298,604,977.20/447,840,246.60 = 107,128,753.20/x - Step 3: Cross multiply
298,604,977.20x = 447,840,246.60 × 107,128,753.20 - Step 4: Simplify right side
298,604,977.20x = 47,976,567,251,038,544 - Step 5: Solve for x
x = 47,976,567,251,038,544/298,604,977.20 - Step 6: Final answer
x = 160,669,013.96
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.