Finding the Fourth Proportional to 65,207,811.30, 97,811,716.95 and 39,698,643.30
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Solution
The fourth proportional to 65,207,811.30, 97,811,716.95 and 39,698,643.30 is: 59,547,964.95
Step by Step Solution
- Step 1: Write the proportion equation
65,207,811.30 : 97,811,716.95 = 39,698,643.30 : x - Step 2: Convert to fraction form
65,207,811.30/97,811,716.95 = 39,698,643.30/x - Step 3: Cross multiply
65,207,811.30x = 97,811,716.95 × 39,698,643.30 - Step 4: Simplify right side
65,207,811.30x = 3,882,992,461,758,614 - Step 5: Solve for x
x = 3,882,992,461,758,614/65,207,811.30 - Step 6: Final answer
x = 59,547,964.95
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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.