Finding the Fourth Proportional to 98,982,306.30, 148,473,459.45 and 66,733,679.10
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Solution
The fourth proportional to 98,982,306.30, 148,473,459.45 and 66,733,679.10 is: 100,100,518.65
Step by Step Solution
- Step 1: Write the proportion equation
98,982,306.30 : 148,473,459.45 = 66,733,679.10 : x - Step 2: Convert to fraction form
98,982,306.30/148,473,459.45 = 66,733,679.10/x - Step 3: Cross multiply
98,982,306.30x = 148,473,459.45 × 66,733,679.10 - Step 4: Simplify right side
98,982,306.30x = 9,908,180,197,803,162 - Step 5: Solve for x
x = 9,908,180,197,803,162/98,982,306.30 - Step 6: Final answer
x = 100,100,518.65
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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.