Finding the Fourth Proportional to 1,309,343,434.02, 1,964,273,880.47 and 480,304,776.06
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Solution
The fourth proportional to 1,309,343,434.02, 1,964,273,880.47 and 480,304,776.06 is: 720,552,073.48
Step by Step Solution
- Step 1: Write the proportion equation
1,309,343,434.02 : 1,964,273,880.47 = 480,304,776.06 : x - Step 2: Convert to fraction form
1,309,343,434.02/1,964,273,880.47 = 480,304,776.06/x - Step 3: Cross multiply
1,309,343,434.02x = 1,964,273,880.47 × 480,304,776.06 - Step 4: Simplify right side
1,309,343,434.02x = 943,450,126,277,249,024 - Step 5: Solve for x
x = 943,450,126,277,249,024/1,309,343,434.02 - Step 6: Final answer
x = 720,552,073.48
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1.5x scale
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.