Finding the Fourth Proportional to 75,697,857.96, 104,462,963.86 and 40,890,542.92
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Solution
The fourth proportional to 75,697,857.96, 104,462,963.86 and 40,890,542.92 is: 56,428,905.95
Step by Step Solution
- Step 1: Write the proportion equation
75,697,857.96 : 104,462,963.86 = 40,890,542.92 : x - Step 2: Convert to fraction form
75,697,857.96/104,462,963.86 = 40,890,542.92/x - Step 3: Cross multiply
75,697,857.96x = 104,462,963.86 × 40,890,542.92 - Step 4: Simplify right side
75,697,857.96x = 4,271,547,307,267,739 - Step 5: Solve for x
x = 4,271,547,307,267,739/75,697,857.96 - Step 6: Final answer
x = 56,428,905.95
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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.