Finding the Fourth Proportional to 13,346,711.12, 18,417,746.04 and 7,545,146.96
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Solution
The fourth proportional to 13,346,711.12, 18,417,746.04 and 7,545,146.96 is: 10,411,898.43
Step by Step Solution
- Step 1: Write the proportion equation
13,346,711.12 : 18,417,746.04 = 7,545,146.96 : x - Step 2: Convert to fraction form
13,346,711.12/18,417,746.04 = 7,545,146.96/x - Step 3: Cross multiply
13,346,711.12x = 18,417,746.04 × 7,545,146.96 - Step 4: Simplify right side
13,346,711.12x = 138,964,600,543,758.03 - Step 5: Solve for x
x = 138,964,600,543,758.03/13,346,711.12 - Step 6: Final answer
x = 10,411,898.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.