Finding the Fourth Proportional to 255,930,760.48, 353,226,681.84 and 156,866,612.80
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Solution
The fourth proportional to 255,930,760.48, 353,226,681.84 and 156,866,612.80 is: 216,501,810.99
Step by Step Solution
- Step 1: Write the proportion equation
255,930,760.48 : 353,226,681.84 = 156,866,612.80 : x - Step 2: Convert to fraction form
255,930,760.48/353,226,681.84 = 156,866,612.80/x - Step 3: Cross multiply
255,930,760.48x = 353,226,681.84 × 156,866,612.80 - Step 4: Simplify right side
255,930,760.48x = 55,409,473,130,824,072 - Step 5: Solve for x
x = 55,409,473,130,824,072/255,930,760.48 - Step 6: Final answer
x = 216,501,810.99
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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.