Finding the Fourth Proportional to 125,133,090.90, 187,699,636.35 and 73,988,783.70
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Solution
The fourth proportional to 125,133,090.90, 187,699,636.35 and 73,988,783.70 is: 110,983,175.55
Step by Step Solution
- Step 1: Write the proportion equation
125,133,090.90 : 187,699,636.35 = 73,988,783.70 : x - Step 2: Convert to fraction form
125,133,090.90/187,699,636.35 = 73,988,783.70/x - Step 3: Cross multiply
125,133,090.90x = 187,699,636.35 × 73,988,783.70 - Step 4: Simplify right side
125,133,090.90x = 13,887,667,794,468,808 - Step 5: Solve for x
x = 13,887,667,794,468,808/125,133,090.90 - Step 6: Final answer
x = 110,983,175.55
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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.