Finding the Fourth Proportional to 87,843,054.24, 121,152,730.72 and 77,223,738.48
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Solution
The fourth proportional to 87,843,054.24, 121,152,730.72 and 77,223,738.48 is: 106,506,619.95
Step by Step Solution
- Step 1: Write the proportion equation
87,843,054.24 : 121,152,730.72 = 77,223,738.48 : x - Step 2: Convert to fraction form
87,843,054.24/121,152,730.72 = 77,223,738.48/x - Step 3: Cross multiply
87,843,054.24x = 121,152,730.72 × 77,223,738.48 - Step 4: Simplify right side
87,843,054.24x = 9,355,866,793,259,142 - Step 5: Solve for x
x = 9,355,866,793,259,142/87,843,054.24 - Step 6: Final answer
x = 106,506,619.95
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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.