Finding the Fourth Proportional to 1,133,863,672.80, 1,700,795,509.20 and 315,975,973.80
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Solution
The fourth proportional to 1,133,863,672.80, 1,700,795,509.20 and 315,975,973.80 is: 473,963,960.70
Step by Step Solution
- Step 1: Write the proportion equation
1,133,863,672.80 : 1,700,795,509.20 = 315,975,973.80 : x - Step 2: Convert to fraction form
1,133,863,672.80/1,700,795,509.20 = 315,975,973.80/x - Step 3: Cross multiply
1,133,863,672.80x = 1,700,795,509.20 × 315,975,973.80 - Step 4: Simplify right side
1,133,863,672.80x = 537,410,517,254,136,896 - Step 5: Solve for x
x = 537,410,517,254,136,896/1,133,863,672.80 - Step 6: Final answer
x = 473,963,960.70
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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.