Finding the Fourth Proportional to 153,405,068.36, 211,697,596.84 and 83,790,430.80
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Solution
The fourth proportional to 153,405,068.36, 211,697,596.84 and 83,790,430.80 is: 115,630,031.19
Step by Step Solution
- Step 1: Write the proportion equation
153,405,068.36 : 211,697,596.84 = 83,790,430.80 : x - Step 2: Convert to fraction form
153,405,068.36/211,697,596.84 = 83,790,430.80/x - Step 3: Cross multiply
153,405,068.36x = 211,697,596.84 × 83,790,430.80 - Step 4: Simplify right side
153,405,068.36x = 17,738,232,838,548,318 - Step 5: Solve for x
x = 17,738,232,838,548,318/153,405,068.36 - Step 6: Final answer
x = 115,630,031.19
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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.