Finding the Fourth Proportional to 439,873,263.80, 659,641,934.10 and 133,063,407.80
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Solution
The fourth proportional to 439,873,263.80, 659,641,934.10 and 133,063,407.80 is: 199,544,302.65
Step by Step Solution
- Step 1: Write the proportion equation
439,873,263.80 : 659,641,934.10 = 133,063,407.80 : x - Step 2: Convert to fraction form
439,873,263.80/659,641,934.10 = 133,063,407.80/x - Step 3: Cross multiply
439,873,263.80x = 659,641,934.10 × 133,063,407.80 - Step 4: Simplify right side
439,873,263.80x = 87,774,203,679,129,024 - Step 5: Solve for x
x = 87,774,203,679,129,024/439,873,263.80 - Step 6: Final answer
x = 199,544,302.65
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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.