Finding the Fourth Proportional to 3,742,717.47, 5,164,943.99 and 2,111,119.76
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Solution
The fourth proportional to 3,742,717.47, 5,164,943.99 and 2,111,119.76 is: 2,913,341.81
Step by Step Solution
- Step 1: Write the proportion equation
3,742,717.47 : 5,164,943.99 = 2,111,119.76 : x - Step 2: Convert to fraction form
3,742,717.47/5,164,943.99 = 2,111,119.76/x - Step 3: Cross multiply
3,742,717.47x = 5,164,943.99 × 2,111,119.76 - Step 4: Simplify right side
3,742,717.47x = 10,903,815,280,201.92 - Step 5: Solve for x
x = 10,903,815,280,201.92/3,742,717.47 - Step 6: Final answer
x = 2,913,341.81
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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.