Finding the Fourth Proportional to 1,008,220,105,206.30, 1,391,347,937,110 and 545,247,143,721.18
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Solution
The fourth proportional to 1,008,220,105,206.30, 1,391,347,937,110 and 545,247,143,721.18 is: 752,443,325,335.55
Step by Step Solution
- Step 1: Write the proportion equation
1,008,220,105,206.30 : 1,391,347,937,110 = 545,247,143,721.18 : x - Step 2: Convert to fraction form
1,008,220,105,206.30/1,391,347,937,110 = 545,247,143,721.18/x - Step 3: Cross multiply
1,008,220,105,206.30x = 1,391,347,937,110 × 545,247,143,721.18 - Step 4: Simplify right side
1,008,220,105,206.30x = 758,628,488,631,583,506,432,000 - Step 5: Solve for x
x = 758,628,488,631,583,506,432,000/1,008,220,105,206.30 - Step 6: Final answer
x = 752,443,325,335.55
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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.