Finding the Fourth Proportional to 97,114,217.80, 145,671,326.70 and 85,170,281.80
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Solution
The fourth proportional to 97,114,217.80, 145,671,326.70 and 85,170,281.80 is: 127,755,422.70
Step by Step Solution
- Step 1: Write the proportion equation
97,114,217.80 : 145,671,326.70 = 85,170,281.80 : x - Step 2: Convert to fraction form
97,114,217.80/145,671,326.70 = 85,170,281.80/x - Step 3: Cross multiply
97,114,217.80x = 145,671,326.70 × 85,170,281.80 - Step 4: Simplify right side
97,114,217.80x = 12,406,867,945,218,862 - Step 5: Solve for x
x = 12,406,867,945,218,862/97,114,217.80 - Step 6: Final answer
x = 127,755,422.70
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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.