Finding the Fourth Proportional to 18,998,352.20, 28,488,547.02 and 6,865,459.40
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Solution
The fourth proportional to 18,998,352.20, 28,488,547.02 and 6,865,459.40 is: 10,294,943.52
Step by Step Solution
- Step 1: Write the proportion equation
18,998,352.20 : 28,488,547.02 = 6,865,459.40 : x - Step 2: Convert to fraction form
18,998,352.20/28,488,547.02 = 6,865,459.40/x - Step 3: Cross multiply
18,998,352.20x = 28,488,547.02 × 6,865,459.40 - Step 4: Simplify right side
18,998,352.20x = 195,586,962,930,801 - Step 5: Solve for x
x = 195,586,962,930,801/18,998,352.20 - Step 6: Final answer
x = 10,294,943.52
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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.