Finding the Fourth Proportional to 123,579,360.18, 170,547,488.68 and 68,575,216.68
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Solution
The fourth proportional to 123,579,360.18, 170,547,488.68 and 68,575,216.68 is: 94,638,222.54
Step by Step Solution
- Step 1: Write the proportion equation
123,579,360.18 : 170,547,488.68 = 68,575,216.68 : x - Step 2: Convert to fraction form
123,579,360.18/170,547,488.68 = 68,575,216.68/x - Step 3: Cross multiply
123,579,360.18x = 170,547,488.68 × 68,575,216.68 - Step 4: Simplify right side
123,579,360.18x = 11,695,330,990,460,848 - Step 5: Solve for x
x = 11,695,330,990,460,848/123,579,360.18 - Step 6: Final answer
x = 94,638,222.54
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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.