Finding the Fourth Proportional to 153,959,132.20, 230,973,165.46 and 51,720,381.40
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Solution
The fourth proportional to 153,959,132.20, 230,973,165.46 and 51,720,381.40 is: 77,592,150.85
Step by Step Solution
- Step 1: Write the proportion equation
153,959,132.20 : 230,973,165.46 = 51,720,381.40 : x - Step 2: Convert to fraction form
153,959,132.20/230,973,165.46 = 51,720,381.40/x - Step 3: Cross multiply
153,959,132.20x = 230,973,165.46 × 51,720,381.40 - Step 4: Simplify right side
153,959,132.20x = 11,946,020,210,756,506 - Step 5: Solve for x
x = 11,946,020,210,756,506/153,959,132.20 - Step 6: Final answer
x = 77,592,150.85
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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.