Finding the Fourth Proportional to 115,592,117.76, 159,518,972.16 and 63,385,920
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Solution
The fourth proportional to 115,592,117.76, 159,518,972.16 and 63,385,920 is: 87,473,583.87
Step by Step Solution
- Step 1: Write the proportion equation
115,592,117.76 : 159,518,972.16 = 63,385,920 : x - Step 2: Convert to fraction form
115,592,117.76/159,518,972.16 = 63,385,920/x - Step 3: Cross multiply
115,592,117.76x = 159,518,972.16 × 63,385,920 - Step 4: Simplify right side
115,592,117.76x = 10,111,256,807,815,986 - Step 5: Solve for x
x = 10,111,256,807,815,986/115,592,117.76 - Step 6: Final answer
x = 87,473,583.87
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1.5x scale
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.