Finding the Fourth Proportional to 1,211,125,707.73, 1,671,354,208.88 and 654,209,000.83
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Solution
The fourth proportional to 1,211,125,707.73, 1,671,354,208.88 and 654,209,000.83 is: 902,808,816.66
Step by Step Solution
- Step 1: Write the proportion equation
1,211,125,707.73 : 1,671,354,208.88 = 654,209,000.83 : x - Step 2: Convert to fraction form
1,211,125,707.73/1,671,354,208.88 = 654,209,000.83/x - Step 3: Cross multiply
1,211,125,707.73x = 1,671,354,208.88 × 654,209,000.83 - Step 4: Simplify right side
1,211,125,707.73x = 1,093,414,967,024,400,000 - Step 5: Solve for x
x = 1,093,414,967,024,400,000/1,211,125,707.73 - Step 6: Final answer
x = 902,808,816.66
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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.