Finding the Fourth Proportional to 76,924,612.36, 106,155,970.50 and 42,117,305.32
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Solution
The fourth proportional to 76,924,612.36, 106,155,970.50 and 42,117,305.32 is: 58,121,884.32
Step by Step Solution
- Step 1: Write the proportion equation
76,924,612.36 : 106,155,970.50 = 42,117,305.32 : x - Step 2: Convert to fraction form
76,924,612.36/106,155,970.50 = 42,117,305.32/x - Step 3: Cross multiply
76,924,612.36x = 106,155,970.50 × 42,117,305.32 - Step 4: Simplify right side
76,924,612.36x = 4,471,003,421,089,413 - Step 5: Solve for x
x = 4,471,003,421,089,413/76,924,612.36 - Step 6: Final answer
x = 58,121,884.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.