Finding the Fourth Proportional to 1,308,119,138.17, 1,804,894,129.37 and 743,559,581.57
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Solution
The fourth proportional to 1,308,119,138.17, 1,804,894,129.37 and 743,559,581.57 is: 1,025,935,852.82
Step by Step Solution
- Step 1: Write the proportion equation
1,308,119,138.17 : 1,804,894,129.37 = 743,559,581.57 : x - Step 2: Convert to fraction form
1,308,119,138.17/1,804,894,129.37 = 743,559,581.57/x - Step 3: Cross multiply
1,308,119,138.17x = 1,804,894,129.37 × 743,559,581.57 - Step 4: Simplify right side
1,308,119,138.17x = 1,342,046,323,612,506,624 - Step 5: Solve for x
x = 1,342,046,323,612,506,624/1,308,119,138.17 - Step 6: Final answer
x = 1,025,935,852.82
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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.