Finding the Fourth Proportional to 439,951,811.80, 659,927,717.70 and 235,878,467.80
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Solution
The fourth proportional to 439,951,811.80, 659,927,717.70 and 235,878,467.80 is: 353,817,701.70
Step by Step Solution
- Step 1: Write the proportion equation
439,951,811.80 : 659,927,717.70 = 235,878,467.80 : x - Step 2: Convert to fraction form
439,951,811.80/659,927,717.70 = 235,878,467.80/x - Step 3: Cross multiply
439,951,811.80x = 659,927,717.70 × 235,878,467.80 - Step 4: Simplify right side
439,951,811.80x = 155,662,738,909,826,944 - Step 5: Solve for x
x = 155,662,738,909,826,944/439,951,811.80 - Step 6: Final answer
x = 353,817,701.70
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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.