Finding the Fourth Proportional to 97,121,148.40, 145,681,722.60 and 75,438,355.60
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Solution
The fourth proportional to 97,121,148.40, 145,681,722.60 and 75,438,355.60 is: 113,157,533.40
Step by Step Solution
- Step 1: Write the proportion equation
97,121,148.40 : 145,681,722.60 = 75,438,355.60 : x - Step 2: Convert to fraction form
97,121,148.40/145,681,722.60 = 75,438,355.60/x - Step 3: Cross multiply
97,121,148.40x = 145,681,722.60 × 75,438,355.60 - Step 4: Simplify right side
97,121,148.40x = 10,989,989,593,919,356 - Step 5: Solve for x
x = 10,989,989,593,919,356/97,121,148.40 - Step 6: Final answer
x = 113,157,533.40
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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.