Finding the Fourth Proportional to 18,894,628.68, 28,346,440.20 and 6,115,133.40
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Solution
The fourth proportional to 18,894,628.68, 28,346,440.20 and 6,115,133.40 is: 9,174,155.59
Step by Step Solution
- Step 1: Write the proportion equation
18,894,628.68 : 28,346,440.20 = 6,115,133.40 : x - Step 2: Convert to fraction form
18,894,628.68/28,346,440.20 = 6,115,133.40/x - Step 3: Cross multiply
18,894,628.68x = 28,346,440.20 × 6,115,133.40 - Step 4: Simplify right side
18,894,628.68x = 173,342,263,238,122.69 - Step 5: Solve for x
x = 173,342,263,238,122.69/18,894,628.68 - Step 6: Final answer
x = 9,174,155.59
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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.