Finding the Fourth Proportional to 69,879,702.60, 96,434,373.36 and 40,528,440.24
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Solution
The fourth proportional to 69,879,702.60, 96,434,373.36 and 40,528,440.24 is: 55,929,470.11
Step by Step Solution
- Step 1: Write the proportion equation
69,879,702.60 : 96,434,373.36 = 40,528,440.24 : x - Step 2: Convert to fraction form
69,879,702.60/96,434,373.36 = 40,528,440.24/x - Step 3: Cross multiply
69,879,702.60x = 96,434,373.36 × 40,528,440.24 - Step 4: Simplify right side
69,879,702.60x = 3,908,334,737,802,608 - Step 5: Solve for x
x = 3,908,334,737,802,608/69,879,702.60 - Step 6: Final answer
x = 55,929,470.11
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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.