Finding the Fourth Proportional to 65,207,820.80, 97,811,731.20 and 39,698,652.80
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Solution
The fourth proportional to 65,207,820.80, 97,811,731.20 and 39,698,652.80 is: 59,547,979.20
Step by Step Solution
- Step 1: Write the proportion equation
65,207,820.80 : 97,811,731.20 = 39,698,652.80 : x - Step 2: Convert to fraction form
65,207,820.80/97,811,731.20 = 39,698,652.80/x - Step 3: Cross multiply
65,207,820.80x = 97,811,731.20 × 39,698,652.80 - Step 4: Simplify right side
65,207,820.80x = 3,882,993,956,675,727 - Step 5: Solve for x
x = 3,882,993,956,675,727/65,207,820.80 - Step 6: Final answer
x = 59,547,979.20
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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.