Finding the Fourth Proportional to 65,207,976.40, 97,811,964.60 and 42,249,725.20
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Solution
The fourth proportional to 65,207,976.40, 97,811,964.60 and 42,249,725.20 is: 63,374,587.80
Step by Step Solution
- Step 1: Write the proportion equation
65,207,976.40 : 97,811,964.60 = 42,249,725.20 : x - Step 2: Convert to fraction form
65,207,976.40/97,811,964.60 = 42,249,725.20/x - Step 3: Cross multiply
65,207,976.40x = 97,811,964.60 × 42,249,725.20 - Step 4: Simplify right side
65,207,976.40x = 4,132,528,625,622,128 - Step 5: Solve for x
x = 4,132,528,625,622,128/65,207,976.40 - Step 6: Final answer
x = 63,374,587.80
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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.