Finding the Fourth Proportional to 4,742,646.29, 7,113,490.68 and 3,215,447.56
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Solution
The fourth proportional to 4,742,646.29, 7,113,490.68 and 3,215,447.56 is: 4,822,846.75
Step by Step Solution
- Step 1: Write the proportion equation
4,742,646.29 : 7,113,490.68 = 3,215,447.56 : x - Step 2: Convert to fraction form
4,742,646.29/7,113,490.68 = 3,215,447.56/x - Step 3: Cross multiply
4,742,646.29x = 7,113,490.68 × 3,215,447.56 - Step 4: Simplify right side
4,742,646.29x = 22,873,056,250,088.74 - Step 5: Solve for x
x = 22,873,056,250,088.74/4,742,646.29 - Step 6: Final answer
x = 4,822,846.75
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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.