Finding the Fourth Proportional to 1,214,267,667.99, 1,675,689,946.11 and 657,350,715.12
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Solution
The fourth proportional to 1,214,267,667.99, 1,675,689,946.11 and 657,350,715.12 is: 907,144,292.34
Step by Step Solution
- Step 1: Write the proportion equation
1,214,267,667.99 : 1,675,689,946.11 = 657,350,715.12 : x - Step 2: Convert to fraction form
1,214,267,667.99/1,675,689,946.11 = 657,350,715.12/x - Step 3: Cross multiply
1,214,267,667.99x = 1,675,689,946.11 × 657,350,715.12 - Step 4: Simplify right side
1,214,267,667.99x = 1,101,515,984,394,802,688 - Step 5: Solve for x
x = 1,101,515,984,394,802,688/1,214,267,667.99 - Step 6: Final answer
x = 907,144,292.34
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1.5x scale
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.