Finding the Fourth Proportional to 138,081,267.48, 190,623,792.18 and 100,869,763.80
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Solution
The fourth proportional to 138,081,267.48, 190,623,792.18 and 100,869,763.80 is: 139,252,610.02
Step by Step Solution
- Step 1: Write the proportion equation
138,081,267.48 : 190,623,792.18 = 100,869,763.80 : x - Step 2: Convert to fraction form
138,081,267.48/190,623,792.18 = 100,869,763.80/x - Step 3: Cross multiply
138,081,267.48x = 190,623,792.18 × 100,869,763.80 - Step 4: Simplify right side
138,081,267.48x = 19,228,176,891,856,888 - Step 5: Solve for x
x = 19,228,176,891,856,888/138,081,267.48 - Step 6: Final answer
x = 139,252,610.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.