Finding the Fourth Proportional to 20,329,392.79, 30,487,622.64 and 6,679,392.99
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Solution
The fourth proportional to 20,329,392.79, 30,487,622.64 and 6,679,392.99 is: 10,016,964.85
Step by Step Solution
- Step 1: Write the proportion equation
20,329,392.79 : 30,487,622.64 = 6,679,392.99 : x - Step 2: Convert to fraction form
20,329,392.79/30,487,622.64 = 6,679,392.99/x - Step 3: Cross multiply
20,329,392.79x = 30,487,622.64 × 6,679,392.99 - Step 4: Simplify right side
20,329,392.79x = 203,638,812,943,381.31 - Step 5: Solve for x
x = 203,638,812,943,381.31/20,329,392.79 - Step 6: Final answer
x = 10,016,964.85
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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.