Finding the Fourth Proportional to 1,133,863,676.80, 1,700,795,515.20 and 315,975,977.80
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Solution
The fourth proportional to 1,133,863,676.80, 1,700,795,515.20 and 315,975,977.80 is: 473,963,966.70
Step by Step Solution
- Step 1: Write the proportion equation
1,133,863,676.80 : 1,700,795,515.20 = 315,975,977.80 : x - Step 2: Convert to fraction form
1,133,863,676.80/1,700,795,515.20 = 315,975,977.80/x - Step 3: Cross multiply
1,133,863,676.80x = 1,700,795,515.20 × 315,975,977.80 - Step 4: Simplify right side
1,133,863,676.80x = 537,410,525,953,174,784 - Step 5: Solve for x
x = 537,410,525,953,174,784/1,133,863,676.80 - Step 6: Final answer
x = 473,963,966.70
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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.