Finding the Fourth Proportional to 163,775,701.45, 245,663,552.18 and 77,682,259.45
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Solution
The fourth proportional to 163,775,701.45, 245,663,552.18 and 77,682,259.45 is: 116,523,389.18
Step by Step Solution
- Step 1: Write the proportion equation
163,775,701.45 : 245,663,552.18 = 77,682,259.45 : x - Step 2: Convert to fraction form
163,775,701.45/245,663,552.18 = 77,682,259.45/x - Step 3: Cross multiply
163,775,701.45x = 245,663,552.18 × 77,682,259.45 - Step 4: Simplify right side
163,775,701.45x = 19,083,699,797,466,964 - Step 5: Solve for x
x = 19,083,699,797,466,964/163,775,701.45 - Step 6: Final answer
x = 116,523,389.18
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1.5x scale
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.