Finding the Fourth Proportional to 391,140,587,141.20, 586,710,880,711.80 and 372,544,403,669.20
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Solution
The fourth proportional to 391,140,587,141.20, 586,710,880,711.80 and 372,544,403,669.20 is: 558,816,605,503.80
Step by Step Solution
- Step 1: Write the proportion equation
391,140,587,141.20 : 586,710,880,711.80 = 372,544,403,669.20 : x - Step 2: Convert to fraction form
391,140,587,141.20/586,710,880,711.80 = 372,544,403,669.20/x - Step 3: Cross multiply
391,140,587,141.20x = 586,710,880,711.80 × 372,544,403,669.20 - Step 4: Simplify right side
391,140,587,141.20x = 218,575,855,181,008,698,605,568 - Step 5: Solve for x
x = 218,575,855,181,008,698,605,568/391,140,587,141.20 - Step 6: Final answer
x = 558,816,605,503.80
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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.