Finding the Fourth Proportional to 11,470,664.58, 15,829,934.84 and 6,243,420.20
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Solution
The fourth proportional to 11,470,664.58, 15,829,934.84 and 6,243,420.20 is: 8,616,147.23
Step by Step Solution
- Step 1: Write the proportion equation
11,470,664.58 : 15,829,934.84 = 6,243,420.20 : x - Step 2: Convert to fraction form
11,470,664.58/15,829,934.84 = 6,243,420.20/x - Step 3: Cross multiply
11,470,664.58x = 15,829,934.84 × 6,243,420.20 - Step 4: Simplify right side
11,470,664.58x = 98,832,934,834,373 - Step 5: Solve for x
x = 98,832,934,834,373/11,470,664.58 - Step 6: Final answer
x = 8,616,147.23
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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.