Finding the Fourth Proportional to 1,299,877,710.53, 1,793,831,240.49 and 742,972,715.02
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Solution
The fourth proportional to 1,299,877,710.53, 1,793,831,240.49 and 742,972,715.02 is: 1,025,302,346.70
Step by Step Solution
- Step 1: Write the proportion equation
1,299,877,710.53 : 1,793,831,240.49 = 742,972,715.02 : x - Step 2: Convert to fraction form
1,299,877,710.53/1,793,831,240.49 = 742,972,715.02/x - Step 3: Cross multiply
1,299,877,710.53x = 1,793,831,240.49 × 742,972,715.02 - Step 4: Simplify right side
1,299,877,710.53x = 1,332,767,667,025,580,800 - Step 5: Solve for x
x = 1,332,767,667,025,580,800/1,299,877,710.53 - Step 6: Final answer
x = 1,025,302,346.70
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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.