Finding the Fourth Proportional to 1,299,877,727.94, 1,793,831,264.60 and 742,972,732.56
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Solution
The fourth proportional to 1,299,877,727.94, 1,793,831,264.60 and 742,972,732.56 is: 1,025,302,370.95
Step by Step Solution
- Step 1: Write the proportion equation
1,299,877,727.94 : 1,793,831,264.60 = 742,972,732.56 : x - Step 2: Convert to fraction form
1,299,877,727.94/1,793,831,264.60 = 742,972,732.56/x - Step 3: Cross multiply
1,299,877,727.94x = 1,793,831,264.60 × 742,972,732.56 - Step 4: Simplify right side
1,299,877,727.94x = 1,332,767,716,407,707,392 - Step 5: Solve for x
x = 1,332,767,716,407,707,392/1,299,877,727.94 - Step 6: Final answer
x = 1,025,302,370.95
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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.