Finding the Fourth Proportional to 93,312,105.20, 139,968,157.80 and 84,242,178.80
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Solution
The fourth proportional to 93,312,105.20, 139,968,157.80 and 84,242,178.80 is: 126,363,268.20
Step by Step Solution
- Step 1: Write the proportion equation
93,312,105.20 : 139,968,157.80 = 84,242,178.80 : x - Step 2: Convert to fraction form
93,312,105.20/139,968,157.80 = 84,242,178.80/x - Step 3: Cross multiply
93,312,105.20x = 139,968,157.80 × 84,242,178.80 - Step 4: Simplify right side
93,312,105.20x = 11,791,222,575,694,216 - Step 5: Solve for x
x = 11,791,222,575,694,216/93,312,105.20 - Step 6: Final answer
x = 126,363,268.20
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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.