Finding the Fourth Proportional to 216,779,701.14, 299,155,229.64 and 117,660,442.95
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Solution
The fourth proportional to 216,779,701.14, 299,155,229.64 and 117,660,442.95 is: 162,370,999.89
Step by Step Solution
- Step 1: Write the proportion equation
216,779,701.14 : 299,155,229.64 = 117,660,442.95 : x - Step 2: Convert to fraction form
216,779,701.14/299,155,229.64 = 117,660,442.95/x - Step 3: Cross multiply
216,779,701.14x = 299,155,229.64 × 117,660,442.95 - Step 4: Simplify right side
216,779,701.14x = 35,198,736,830,251,368 - Step 5: Solve for x
x = 35,198,736,830,251,368/216,779,701.14 - Step 6: Final answer
x = 162,370,999.89
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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.