Finding the Fourth Proportional to 155,239,686.90, 232,859,530.35 and 132,157,432.80
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Solution
The fourth proportional to 155,239,686.90, 232,859,530.35 and 132,157,432.80 is: 198,236,149.20
Step by Step Solution
- Step 1: Write the proportion equation
155,239,686.90 : 232,859,530.35 = 132,157,432.80 : x - Step 2: Convert to fraction form
155,239,686.90/232,859,530.35 = 132,157,432.80/x - Step 3: Cross multiply
155,239,686.90x = 232,859,530.35 × 132,157,432.80 - Step 4: Simplify right side
155,239,686.90x = 30,774,117,734,069,684 - Step 5: Solve for x
x = 30,774,117,734,069,684/155,239,686.90 - Step 6: Final answer
x = 198,236,149.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.