Finding the Fourth Proportional to 155,423,770.18, 214,480,533.82 and 85,807,886.02
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Solution
The fourth proportional to 155,423,770.18, 214,480,533.82 and 85,807,886.02 is: 118,412,525.82
Step by Step Solution
- Step 1: Write the proportion equation
155,423,770.18 : 214,480,533.82 = 85,807,886.02 : x - Step 2: Convert to fraction form
155,423,770.18/214,480,533.82 = 85,807,886.02/x - Step 3: Cross multiply
155,423,770.18x = 214,480,533.82 × 85,807,886.02 - Step 4: Simplify right side
155,423,770.18x = 18,404,121,199,535,312 - Step 5: Solve for x
x = 18,404,121,199,535,312/155,423,770.18 - Step 6: Final answer
x = 118,412,525.82
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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.