Finding the Fourth Proportional to 48,159,779.86, 66,432,701.82 and 30,736,486.68
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Solution
The fourth proportional to 48,159,779.86, 66,432,701.82 and 30,736,486.68 is: 42,398,612.71
Step by Step Solution
- Step 1: Write the proportion equation
48,159,779.86 : 66,432,701.82 = 30,736,486.68 : x - Step 2: Convert to fraction form
48,159,779.86/66,432,701.82 = 30,736,486.68/x - Step 3: Cross multiply
48,159,779.86x = 66,432,701.82 × 30,736,486.68 - Step 4: Simplify right side
48,159,779.86x = 2,041,907,854,606,841.75 - Step 5: Solve for x
x = 2,041,907,854,606,841.75/48,159,779.86 - Step 6: Final answer
x = 42,398,612.71
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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.