Finding the Fourth Proportional to 67,455,579.68, 93,089,341.30 and 39,578,764.12
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Solution
The fourth proportional to 67,455,579.68, 93,089,341.30 and 39,578,764.12 is: 54,619,070.78
Step by Step Solution
- Step 1: Write the proportion equation
67,455,579.68 : 93,089,341.30 = 39,578,764.12 : x - Step 2: Convert to fraction form
67,455,579.68/93,089,341.30 = 39,578,764.12/x - Step 3: Cross multiply
67,455,579.68x = 93,089,341.30 × 39,578,764.12 - Step 4: Simplify right side
67,455,579.68x = 3,684,361,081,252,828.50 - Step 5: Solve for x
x = 3,684,361,081,252,828.50/67,455,579.68 - Step 6: Final answer
x = 54,619,070.78
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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.