Finding the Fourth Proportional to 207,210,130.16, 310,661,966.72 and 125,310,800.79
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Solution
The fourth proportional to 207,210,130.16, 310,661,966.72 and 125,310,800.79 is: 187,873,535.89
Step by Step Solution
- Step 1: Write the proportion equation
207,210,130.16 : 310,661,966.72 = 125,310,800.79 : x - Step 2: Convert to fraction form
207,210,130.16/310,661,966.72 = 125,310,800.79/x - Step 3: Cross multiply
207,210,130.16x = 310,661,966.72 × 125,310,800.79 - Step 4: Simplify right side
207,210,130.16x = 38,929,299,824,992,816 - Step 5: Solve for x
x = 38,929,299,824,992,816/207,210,130.16 - Step 6: Final answer
x = 187,873,535.89
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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.