Finding the Fourth Proportional to 1,299,877,705.53, 1,793,831,233.64 and 742,972,709.97
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Solution
The fourth proportional to 1,299,877,705.53, 1,793,831,233.64 and 742,972,709.97 is: 1,025,302,339.76
Step by Step Solution
- Step 1: Write the proportion equation
1,299,877,705.53 : 1,793,831,233.64 = 742,972,709.97 : x - Step 2: Convert to fraction form
1,299,877,705.53/1,793,831,233.64 = 742,972,709.97/x - Step 3: Cross multiply
1,299,877,705.53x = 1,793,831,233.64 × 742,972,709.97 - Step 4: Simplify right side
1,299,877,705.53x = 1,332,767,652,882,624,256 - Step 5: Solve for x
x = 1,332,767,652,882,624,256/1,299,877,705.53 - Step 6: Final answer
x = 1,025,302,339.76
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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.