Finding the Fourth Proportional to 1,209,177,744.81, 1,812,923,336.75 and 535,766,566.19
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Solution
The fourth proportional to 1,209,177,744.81, 1,812,923,336.75 and 535,766,566.19 is: 803,276,205.71
Step by Step Solution
- Step 1: Write the proportion equation
1,209,177,744.81 : 1,812,923,336.75 = 535,766,566.19 : x - Step 2: Convert to fraction form
1,209,177,744.81/1,812,923,336.75 = 535,766,566.19/x - Step 3: Cross multiply
1,209,177,744.81x = 1,812,923,336.75 × 535,766,566.19 - Step 4: Simplify right side
1,209,177,744.81x = 971,303,710,884,521,088 - Step 5: Solve for x
x = 971,303,710,884,521,088/1,209,177,744.81 - Step 6: Final answer
x = 803,276,205.71
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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.