Finding the Fourth Proportional to 1,125,252,982.72, 1,552,828,563.48 and 623,459,936.08
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Solution
The fourth proportional to 1,125,252,982.72, 1,552,828,563.48 and 623,459,936.08 is: 860,363,324.33
Step by Step Solution
- Step 1: Write the proportion equation
1,125,252,982.72 : 1,552,828,563.48 = 623,459,936.08 : x - Step 2: Convert to fraction form
1,125,252,982.72/1,552,828,563.48 = 623,459,936.08/x - Step 3: Cross multiply
1,125,252,982.72x = 1,552,828,563.48 × 623,459,936.08 - Step 4: Simplify right side
1,125,252,982.72x = 968,126,396,930,439,040 - Step 5: Solve for x
x = 968,126,396,930,439,040/1,125,252,982.72 - Step 6: Final answer
x = 860,363,324.33
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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.