Finding the Fourth Proportional to 288,939,787.88, 398,717,277.50 and 158,567,993.96
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Solution
The fourth proportional to 288,939,787.88, 398,717,277.50 and 158,567,993.96 is: 218,813,058.99
Step by Step Solution
- Step 1: Write the proportion equation
288,939,787.88 : 398,717,277.50 = 158,567,993.96 : x - Step 2: Convert to fraction form
288,939,787.88/398,717,277.50 = 158,567,993.96/x - Step 3: Cross multiply
288,939,787.88x = 398,717,277.50 × 158,567,993.96 - Step 4: Simplify right side
288,939,787.88x = 63,223,798,850,367,648 - Step 5: Solve for x
x = 63,223,798,850,367,648/288,939,787.88 - Step 6: Final answer
x = 218,813,058.99
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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.