Finding the Fourth Proportional to 153,247,710.87, 211,478,889.93 and 83,633,589.95
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Solution
The fourth proportional to 153,247,710.87, 211,478,889.93 and 83,633,589.95 is: 115,412,743.60
Step by Step Solution
- Step 1: Write the proportion equation
153,247,710.87 : 211,478,889.93 = 83,633,589.95 : x - Step 2: Convert to fraction form
153,247,710.87/211,478,889.93 = 83,633,589.95/x - Step 3: Cross multiply
153,247,710.87x = 211,478,889.93 × 83,633,589.95 - Step 4: Simplify right side
153,247,710.87x = 17,686,738,762,429,408 - Step 5: Solve for x
x = 17,686,738,762,429,408/153,247,710.87 - Step 6: Final answer
x = 115,412,743.60
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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.