Finding the Fourth Proportional to 886,465,897.40, 1,329,698,846.10 and 838,848,783.80
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Solution
The fourth proportional to 886,465,897.40, 1,329,698,846.10 and 838,848,783.80 is: 1,258,273,175.70
Step by Step Solution
- Step 1: Write the proportion equation
886,465,897.40 : 1,329,698,846.10 = 838,848,783.80 : x - Step 2: Convert to fraction form
886,465,897.40/1,329,698,846.10 = 838,848,783.80/x - Step 3: Cross multiply
886,465,897.40x = 1,329,698,846.10 × 838,848,783.80 - Step 4: Simplify right side
886,465,897.40x = 1,115,416,259,871,248,256 - Step 5: Solve for x
x = 1,115,416,259,871,248,256/886,465,897.40 - Step 6: Final answer
x = 1,258,273,175.70
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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.