Finding the Fourth Proportional to 153,869,392.36, 212,339,807.16 and 83,304,988.48
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Solution
The fourth proportional to 153,869,392.36, 212,339,807.16 and 83,304,988.48 is: 114,960,908.85
Step by Step Solution
- Step 1: Write the proportion equation
153,869,392.36 : 212,339,807.16 = 83,304,988.48 : x - Step 2: Convert to fraction form
153,869,392.36/212,339,807.16 = 83,304,988.48/x - Step 3: Cross multiply
153,869,392.36x = 212,339,807.16 × 83,304,988.48 - Step 4: Simplify right side
153,869,392.36x = 17,688,965,189,309,222 - Step 5: Solve for x
x = 17,688,965,189,309,222/153,869,392.36 - Step 6: Final answer
x = 114,960,908.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.