Finding the Fourth Proportional to 87,708,326.88, 121,036,024.26 and 48,549,263.52
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Solution
The fourth proportional to 87,708,326.88, 121,036,024.26 and 48,549,263.52 is: 66,997,171.72
Step by Step Solution
- Step 1: Write the proportion equation
87,708,326.88 : 121,036,024.26 = 48,549,263.52 : x - Step 2: Convert to fraction form
87,708,326.88/121,036,024.26 = 48,549,263.52/x - Step 3: Cross multiply
87,708,326.88x = 121,036,024.26 × 48,549,263.52 - Step 4: Simplify right side
87,708,326.88x = 5,876,209,837,211,854 - Step 5: Solve for x
x = 5,876,209,837,211,854/87,708,326.88 - Step 6: Final answer
x = 66,997,171.72
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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.