Finding the Fourth Proportional to 65,207,967.40, 97,811,951.10 and 42,249,716.20
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Solution
The fourth proportional to 65,207,967.40, 97,811,951.10 and 42,249,716.20 is: 63,374,574.30
Step by Step Solution
- Step 1: Write the proportion equation
65,207,967.40 : 97,811,951.10 = 42,249,716.20 : x - Step 2: Convert to fraction form
65,207,967.40/97,811,951.10 = 42,249,716.20/x - Step 3: Cross multiply
65,207,967.40x = 97,811,951.10 × 42,249,716.20 - Step 4: Simplify right side
65,207,967.40x = 4,132,527,174,943,278 - Step 5: Solve for x
x = 4,132,527,174,943,278/65,207,967.40 - Step 6: Final answer
x = 63,374,574.30
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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.