Finding the Fourth Proportional to 1,292,663,501.70, 1,938,995,252.55 and 898,121,703.30
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Solution
The fourth proportional to 1,292,663,501.70, 1,938,995,252.55 and 898,121,703.30 is: 1,347,182,554.95
Step by Step Solution
- Step 1: Write the proportion equation
1,292,663,501.70 : 1,938,995,252.55 = 898,121,703.30 : x - Step 2: Convert to fraction form
1,292,663,501.70/1,938,995,252.55 = 898,121,703.30/x - Step 3: Cross multiply
1,292,663,501.70x = 1,938,995,252.55 × 898,121,703.30 - Step 4: Simplify right side
1,292,663,501.70x = 1,741,453,718,910,819,584 - Step 5: Solve for x
x = 1,741,453,718,910,819,584/1,292,663,501.70 - Step 6: Final answer
x = 1,347,182,554.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.