Finding the Fourth Proportional to 517,103,637.20, 776,078,470.20 and 513,072,558.80
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Solution
The fourth proportional to 517,103,637.20, 776,078,470.20 and 513,072,558.80 is: 770,028,554.99
Step by Step Solution
- Step 1: Write the proportion equation
517,103,637.20 : 776,078,470.20 = 513,072,558.80 : x - Step 2: Convert to fraction form
517,103,637.20/776,078,470.20 = 513,072,558.80/x - Step 3: Cross multiply
517,103,637.20x = 776,078,470.20 × 513,072,558.80 - Step 4: Simplify right side
517,103,637.20x = 398,184,566,535,103,552 - Step 5: Solve for x
x = 398,184,566,535,103,552/517,103,637.20 - Step 6: Final answer
x = 770,028,554.99
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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.