Finding the Fourth Proportional to 2,185,812,062.80, 3,277,584,353.40 and 804,915,768.40
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Solution
The fourth proportional to 2,185,812,062.80, 3,277,584,353.40 and 804,915,768.40 is: 1,206,956,157.49
Step by Step Solution
- Step 1: Write the proportion equation
2,185,812,062.80 : 3,277,584,353.40 = 804,915,768.40 : x - Step 2: Convert to fraction form
2,185,812,062.80/3,277,584,353.40 = 804,915,768.40/x - Step 3: Cross multiply
2,185,812,062.80x = 3,277,584,353.40 × 804,915,768.40 - Step 4: Simplify right side
2,185,812,062.80x = 2,638,179,328,312,778,240 - Step 5: Solve for x
x = 2,638,179,328,312,778,240/2,185,812,062.80 - Step 6: Final answer
x = 1,206,956,157.49
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1.5x scale
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.