Finding the Fourth Proportional to 74,490,193,324.20, 111,735,289,986.30 and 66,408,888,901.80
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Solution
The fourth proportional to 74,490,193,324.20, 111,735,289,986.30 and 66,408,888,901.80 is: 99,613,333,352.70
Step by Step Solution
- Step 1: Write the proportion equation
74,490,193,324.20 : 111,735,289,986.30 = 66,408,888,901.80 : x - Step 2: Convert to fraction form
74,490,193,324.20/111,735,289,986.30 = 66,408,888,901.80/x - Step 3: Cross multiply
74,490,193,324.20x = 111,735,289,986.30 × 66,408,888,901.80 - Step 4: Simplify right side
74,490,193,324.20x = 7,420,216,459,110,602,768,384 - Step 5: Solve for x
x = 7,420,216,459,110,602,768,384/74,490,193,324.20 - Step 6: Final answer
x = 99,613,333,352.70
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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.