Finding the Fourth Proportional to 19,872,690.53, 29,808,998.59 and 6,226,881.56
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Solution
The fourth proportional to 19,872,690.53, 29,808,998.59 and 6,226,881.56 is: 9,340,310.68
Step by Step Solution
- Step 1: Write the proportion equation
19,872,690.53 : 29,808,998.59 = 6,226,881.56 : x - Step 2: Convert to fraction form
19,872,690.53/29,808,998.59 = 6,226,881.56/x - Step 3: Cross multiply
19,872,690.53x = 29,808,998.59 × 6,226,881.56 - Step 4: Simplify right side
19,872,690.53x = 185,617,103,642,137 - Step 5: Solve for x
x = 185,617,103,642,137/19,872,690.53 - Step 6: Final answer
x = 9,340,310.68
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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.