Finding the Fourth Proportional to 372,166,220.80, 558,249,199.80 and 99,529,901.92
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Solution
The fourth proportional to 372,166,220.80, 558,249,199.80 and 99,529,901.92 is: 149,294,817.74
Step by Step Solution
- Step 1: Write the proportion equation
372,166,220.80 : 558,249,199.80 = 99,529,901.92 : x - Step 2: Convert to fraction form
372,166,220.80/558,249,199.80 = 99,529,901.92/x - Step 3: Cross multiply
372,166,220.80x = 558,249,199.80 × 99,529,901.92 - Step 4: Simplify right side
372,166,220.80x = 55,562,488,103,012,480 - Step 5: Solve for x
x = 55,562,488,103,012,480/372,166,220.80 - Step 6: Final answer
x = 149,294,817.74
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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.