Finding the Fourth Proportional to 145,754,911.41, 201,141,792.80 and 79,675,678.92
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Solution
The fourth proportional to 145,754,911.41, 201,141,792.80 and 79,675,678.92 is: 109,952,445.14
Step by Step Solution
- Step 1: Write the proportion equation
145,754,911.41 : 201,141,792.80 = 79,675,678.92 : x - Step 2: Convert to fraction form
145,754,911.41/201,141,792.80 = 79,675,678.92/x - Step 3: Cross multiply
145,754,911.41x = 201,141,792.80 × 79,675,678.92 - Step 4: Simplify right side
145,754,911.41x = 16,026,108,900,525,970 - Step 5: Solve for x
x = 16,026,108,900,525,970/145,754,911.41 - Step 6: Final answer
x = 109,952,445.14
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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.