Finding the Fourth Proportional to 20,926,746.29, 31,391,341.07 and 6,354,141.18
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Solution
The fourth proportional to 20,926,746.29, 31,391,341.07 and 6,354,141.18 is: 9,531,582.70
Step by Step Solution
- Step 1: Write the proportion equation
20,926,746.29 : 31,391,341.07 = 6,354,141.18 : x - Step 2: Convert to fraction form
20,926,746.29/31,391,341.07 = 6,354,141.18/x - Step 3: Cross multiply
20,926,746.29x = 31,391,341.07 × 6,354,141.18 - Step 4: Simplify right side
20,926,746.29x = 199,465,012,831,355.56 - Step 5: Solve for x
x = 199,465,012,831,355.56/20,926,746.29 - Step 6: Final answer
x = 9,531,582.70
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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.